For software version 2.2.23 status 01/2012
Operating Manual
A product of smart optics Sensortechnik GmbH
Table of contents
1
1. Table of contents
1. TABLE OF CONTENTS 1
2. LIST OF FIGURES 3
3. ICONS 5
4. GENERAL SAFETY INFORMATION 5
5. TECHNICAL SPECIFICATIONS 6
6. CE DECLARATION OF CONFORMITY 7
7. GENERAL SAFETY INFORMATION 8
8. INSTALLATION 10
8.1 SELECTING THE INSTALLATION LOCATION 10
8.2 UNPACKING AND SCOPE OF DELIVERY 10
8.3 CARRYING POINTS 11
8.4 REMOVING THE SCANNER FROM THE PACKAGING 12
9. INSTALLATION 13
9.1 INSTALLING THE SCANNER 13
9.2 INSTALLING THE COMPUTER 14
9.3 INSTALLING THE SOFTWARE 14
9.4 IMPORTING CALIBRATION DATA 19
10. CALIBRATION PROCEDURE 21
10.1 AXIS CALIBRATION 21
10.2 3D CALIBRATION 22
11. BASIC INFORMATION ABOUT THE DEVICE 24
11.1 FUNCTIONING OF THE ACTIVITY 850 24
11.2 INTERIOR 29
11.3 OBJECT HOLDER 30
11.4 POSITIONING THE MODEL ON THE OBJECT HOLDER 32
Table of contents
2
12. SCANNING PROCEDURE 34
12.1 CLAMPING THE MODEL 34
12.2 CREATING A PRESCAN 34
12.3 CASE STUDY: BRIDGE WITH SQUEEZE BITE 36
12.4 CASE STUDY: COMPLETE JAW SCAN 44
12.5 CASE STUDY: OCCLUSION SCAN 47
13. SYMBOLS 54
13.1 THE SYMBOLS 54
13.2 THE 3D VIEWER SYMBOLS (OBJECT VIEW) 56
13.3 ACTIVITY MENU OPTIONS 57
13.4 OPTIONS SETTINGS MATCHING 57
13.5 OPTIONS SETTINGS GENERAL 58
13.6 OPTIONS SETTINGS INSTALLATION 61
14. MAINTENANCE AND SERVICING 62
15. FAULTS AND REPAIRS 62
16. ENVIRONMENTAL FACTORS AND DISPOSAL 62
16.1 PACKAGING 62
16.2 DISPOSAL 62
17. IMPRINT 63
List of figures
3
2. List of figures
FIGURE 1: SCANNER SIDE VIEW ........................................................................................................................................... 12
FIGURE 2: SCANNER HOLDING POINT ................................................................................................................................... 12
FIGURE 3: SCANNER HOLDING POINT ................................................................................................................................... 12
FIGURE 4: MAINS SWITCH ON THE REAR OF THE DEVICE ...................................................................................................... 13
FIGURE 5: SETUP/INSTALLATION .......................................................................................................................................... 14
FIGURE 6: LANGUAGE SELECTION ........................................................................................................................................ 15
FIGURE 7: SETUP WIZARD ................................................................................................................................................... 15
FIGURE 8: SELECT INSTALLATION LOCATION ........................................................................................................................ 16
FIGURE 9: START MENU 16
FIGURE 10: CREATING A DESKTOP SYMBOL......................................................................................................................... 17
FIGURE 11: INSTALLATION ................................................................................................................................................... 17
FIGURE 12: INSTALLATION ................................................................................................................................................... 18
FIGURE 13: COMPLETING THE INSTALLATION ....................................................................................................................... 18
FIGURE 14: NO CALIBRATION DATA ..................................................................................................................................... 19
FIGURE 15: FOLDER SEARCH ............................................................................................................................................... 19
FIGURE 16: SELECTED FOLDER ............................................................................................................................................ 20
FIGURE 17: IMPLEMENTING THE SENSOR DATA .................................................................................................................... 20
FIGURE 18: CALIBRATION MODEL WITH SPACER PLATE ........................................................................................................ 21
FIGURE 19: SCAN SOFTWARE CALIBRATION ......................................................................................................................... 21
FIGURE 20: SCAN SOFTWARE CALIBRATION ......................................................................................................................... 22
FIGURE 21: INDIVIDUAL CALIBRATION BLOCK ....................................................................................................................... 22
FIGURE 22: CALIBRATION MODEL REGISTRATION ................................................................................................................. 23
FIGURE 23: COMPLETING THE CALIBRATION ........................................................................................................................ 23
FIGURE 24: DEVICE FRONT .................................................................................................................................................. 26
FIGURE 25: DEVICE REAR .................................................................................................................................................... 26
FIGURE 26: SIDE VIEW ......................................................................................................................................................... 27
FIGURE 27: SYSTEM DRAWER .............................................................................................................................................. 27
FIGURE 28: DATA PLATE ...................................................................................................................................................... 28
FIGURE 29: ROTATING-SWIVELLING UNIT ............................................................................................................................. 29
FIGURE 30: ROCKER/ROTATING-SWIVELLING UNIT ............................................................................................................... 29
FIGURE 31: INDIVIDUAL PARTS OF THE OBJECT HOLDER ..................................................................................................... 30
FIGURE 32: OBJECT HOLDER SYSTEM .................................................................................................................................. 31
FIGURE 33: OBJECT HOLDER SYSTEM WITH MODEL ............................................................................................................ 32
FIGURE 34: HEIGHT ALIGNMENT .......................................................................................................................................... 33
FIGURE 35: "NEW PROJECT" ................................................................................................................................................ 34
FIGURE 36: "NEW MEASUREMENT" ...................................................................................................................................... 35
FIGURE 37: 2D SCAN AND ENTRY SCREEN ........................................................................................................................... 35
FIGURE 38: STARTING THE SCAN PROCESS .......................................................................................................................... 37
FIGURE 39: PROMPT NOTIFICATION ..................................................................................................................................... 37
FIGURE 40: DATA SET BEFORE "MATCHING" ......................................................................................................................... 38
FIGURE 41: "RESCAN" MODE ............................................................................................................................................... 39
FIGURE 42: "RESCAN" .......................................................................................................................................................... 39
FIGURE 43: SAVE PROJECT .................................................................................................................................................. 40
FIGURE 44: "MATCHING" PROCESS ...................................................................................................................................... 41
FIGURE 45: 3D STL DATA SET ............................................................................................................................................. 41
FIGURE 46: “BITE REGISTRATION" SYMBOL.......................................................................................................................... 42
FIGURE 47: INFORMATION WINDOW .................................................................................................................................... 42
List of figures
4
FIGURE 48: SQUEEZE BITE ALIGNMENT PRESCAN ................................................................................................................. 42
FIGURE 49: CUT BITE REGISTRATION .................................................................................................................................... 43
FIGURE 50: CUT BITE REGISTRATION .................................................................................................................................... 43
FIGURE 51: COMPLETE JAW 2D SCAN ................................................................................................................................. 44
FIGURE 52: COMPLETE JAW ALIGNMENT PRESCAN .............................................................................................................. 45
FIGURE 53: STARTING THE SCAN PROCESS .......................................................................................................................... 45
FIGURE 54: COMPLETE JAW 3D SCAN ................................................................................................................................. 46
FIGURE 55: 3D-STL DATA SET ............................................................................................................................................ 46
FIGURE 56: TABS ................................................................................................................................................................. 47
FIGURE 57: FIXED JAW ........................................................................................................................................................ 48
FIGURE 58: ADD DENTAL SCAN............................................................................................................................................ 48
FIGURE 59: NEW MEASUREMENT ........................................................................................................................................ 49
FIGURE 60: ANTAGONIST ALIGNMENT ................................................................................................................................. 49
FIGURE 61: PRESCAN .......................................................................................................................................................... 50
FIGURE 62: VESTIBULAR SCAN ............................................................................................................................................. 50
FIGURE 63: "ARTICULATION" ICON ....................................................................................................................................... 50
FIGURE 64: SELECT LOWER JAW FIGURE 65: SELECT UPPER JAW ........................... 51
FIGURE 66: LOWER JAW ALIGNMENT .................................................................................................................................. 52
FIGURE 67: "NEXT" .............................................................................................................................................................. 52
FIGURE 68: UPPER JAW ALIGNMENT .................................................................................................................................... 52
FIGURE 69: ALIGNED UPPER AND LOWER JAWS ................................................................................................................... 53
FIGURE 70: ARTICULATED STL DATA SET ............................................................................................................................ 53
FIGURE 71: ACTIVITY MENU OPTIONS .................................................................................................................................. 57
FIGURE 72: SETTINGS - MATCHING ...................................................................................................................................... 57
FIGURE 73: SETTINGS - GENERAL ....................................................................................................................................... 58
FIGURE 74: SETTINGS - INSTALLATION ................................................................................................................................. 61
Icons
5
This symbol indicates warning information
Useful hints are marked with a light bulb in the operating manual
3. Icons
4. General safety information
Proper use:
The Activity 850 scanner is intended for use in performing optical, three-dimensional
measurements of human jaw models.
It is possible to measure articulated models in order to simulate masticatory movements using
corresponding software, as in an articulator.
Anything other than the proper use is strongly advised against, as improper use may cause
damage or injury.
Technical specifications
6
Dimensions
440 mm x 480 mm x 430 mm (WxHxD)
Weight
23 kg
Connection voltage
100-240 V AC, 50-60 Hz
Power consumption
60 W
Protection class
IP11
Permissible temperature
range
18-30 °C
Measureable objects
Plaster models of teeth
Minimum clamping range
of the removable object
holder
40 mm
Maximum clamping range
of the removable object
holder
70 mm
Height adjustment
+/- 20 mm
Measuring time for the
measurement of
Single stump: < 1 min
3-member bridge: < 3 min
Complete jaw: < 5 min
Resolution
Basic resolution of the 3D sensing head:
50 µm x 66 µm x 50 µm (x, y, z)
Accuracy
+/-10 µm standard deviation measured at test specimen,
determined via min. 50 measuring points with 10 repetitions
each
Output data format
STL
Interfaces
USB
Scope of delivery
Scanner, power cord, 2x USB cable, CD with operating
software and calibration data, operating manual, calibration
block
System requirements
Operating system Windows 7 Ultimate 64® Bit, Intel core 2
Quad CPU Q 9550 2.83 Ghz or higher, RAM 8 GB, highperformance 3D graphics card with min. 1GB RAM e.g.
GeForce, 320 GB hard disk
5. Technical specifications
CE declaration of conformity
7
6. CE declaration of conformity
As per EU Directive 98/37/EC Annex II A
We hereby declare that the design and construction of the devices below complies with the
fundamental safety and health requirements of the EU Directive.
If the device is modified without our agreement, this declaration ceases to be valid.
Device designation: Optical 3D scanner
Device type: Activity 850
Relevant EU Directives: Machinery Directive (98/37/EC)
Low Voltage Directive (73/23/EEC)
EMC Directive (93/68/EEC)
Applied harmonized standards:
EN 1050, EN 12100-1, EN 12100-2, EN 61000-6-1, EN 61000-6-3
The CE conformity marking was first used on this product in 2011.
Created:
Jörg Friemel
Date: 1 May 2011
General safety information
8
When setting up, commissioning and operating the scanner, you must observe the following
safety information at all times.
1.
The device may be operated only by adequately trained staff who have knowledge
concerning the proper use of the device as well as the safety information cited here.
2.
The device is intended exclusively for use in dry, enclosed rooms.
3.
The device may be operated only on a stable base (tabletop, bench, etc.) that has a load
bearing capacity which is at least twice the net weight of the scanner as stated in the
technical specifications.
The base must be fixed to a building wall or have a braced support frame that is suitable for
absorbing vibrations occurring during operation of the scanner.
Besides the pure load-bearing capacity, the sturdiness and stability of the base is crucial for
safe operation of the scanner.
4.
The information on transport and storage must be observed when lifting and transporting the
scanner.
5.
Please do not place any objects on the scanner, as there is a risk that these can fall down
owing to the surface structure as well as the resultant vibrations during scanning operation.
6.
The "Activity 850" scanner has been developed and manufactured in accordance with the
applicable safety standards and with the greatest possible care. In spite of this, the risk of an
electric shock, overheating or fire due to technical defects in individual components cannot
be totally excluded.
You should therefore switch the device off when not using it for longer periods and when it
is left unattended. This also benefits the environment, as it means less electrical energy is
consumed.
7.
The scanner contains a motion unit comprising three electrically powered axes of rotation
that serve to position the object during scanning.
To enable the object to be clamped in a definite position as well as a faster workflow during
scanning, the movement axes are also kept in position electrically when the flap is open.
An electronic protection mechanism prevents the motors from starting up unintentionally or
7. General safety information
General safety information
9
continuing to operate when the flap is opened.
As there is a theoretical possibility of the protection mechanism failing, this entails a residual
risk which you can counter by complying with the following rules of use:
7.1.
Do not open the front flap during a scanning procedure until after
a corresponding prompt or the end of a scanning procedure has been displayed on the
screen.
7.2.
If you determine that the scanner is acting unusually, such as an uncontrolled or continuous
rotation of one or more movement axes, switch off the scanner at the main switch before
opening the flap.
If this unusual behaviour continues after switching on again and restarting the software, do
not use the scanner any longer. The device must be marked as defective and prevented from
being put into operation again until the fault is rectified.
7.3.
Do not reach inside the scanner if one or more movement axes move despite the flap being
open. Switch the scanner off immediately.
The scanner may no longer be used in this case and must be marked as defective and
prevented from being put into operation again until the fault is rectified.
7.4.
During scanning, never reach below the area between the rocker and case that is marked by
warning signs.
This also applies if the rocker is swivelled upwards to the rear.
Before removing any objects that have fallen into the scanner or before cleaning the scanner
compartment, you must switch off the device at the main switch.
8.
If you notice that the scanner is damaged or defective, you must label it as defective and
make sure that it is not used until it has been repaired.
Installation
10
The net weight of the scanner is approx. 23 kg.
Always observe the following instructions to lift the scanner properly out of the
packaging and position it at its location of use.
The scanner accessories can be found at the base of the packaging.
Check that the scope of delivery is complete.
8. Installation
8.1 Selecting the installation location
Before installing the scanner, you should select a suitable installation location.
A suitable, stable base (bench, tabletop etc.) should be chosen as an installation location.
If you install the computer required for operating the scanner underneath the worktop, the
available worktop area should be at least 1.1 m x 0.75 m (front width x depth). If you plan to also
place the computer on the worktable, the area must be enlarged corresponding to the dimensions
of the computer.
The selected workplace should, if possible, face away from windows or strong artificial light, as
excessively strong external light can lead to undesirable reflections on the monitor that can
interfere with the functioning and results of the optical scanner in extreme cases.
8.2 Unpacking and scope of delivery
Inspect the external packaging for visible damage as soon as you take delivery of the scanner. If
you notice that the packaging is damaged, inform the delivering forwarder and your specialist
dealer immediately.
The device is delivered in a strong outer box on a wooden pallet. After removing the straps, open
the upper folding lid of the box. The box contains a foam piece that protects the scanner, which is
packed below during transport.
First, pull the foam piece upwards out of the box. You can then lift off the whole box upwards.
Two people must lift the device out of the packaging and place it on the prepared,
intended workplace.
Be sure to transport the scanner (while still on the pallet) as closely as possible to the
workplace to avoid longer transport distances.
Installation
11
Scope of delivery:
Never carry the scanner with the flap open, and do not carry the scanner using the flap
itself.
Person A
Person B
Carrying points, front
Carrying points, rear
(back of the device)
- 1 scanner
- 1 power cord
- 2 USB cables
- 1 hex key
- 1 user manual
- 1 calibration object
- 1 software installation CD including calibration data
- 1 removable object holder
- 1 measuring range template
8.3 Carrying points
Carrying points are provided to move the device. Please note these specifications.
Stand so that one person each is positioned to the left and right of the scanner. Take hold of the
scanner with one hand at the bottom front of the scanner and the other hand at the top rear. In
this way, the scanner can be safely tilted slightly to the rear.
Installation
12
Figure 1: Scanner side view
Figure 2: Scanner holding point
Figure 3: Scanner holding point
8.4 Removing the scanner from the packaging
1. To remove the scanner from the packaging, one person stands to the left of the scanner and
the other person stands to the right.
2. Each person must take hold of the scanner with one hand on the upper support point. Next, tilt
the scanner slightly to the rear until you can grip underneath the scanner at the front with your
other hand. (Figures 2 and 3)
3. Working together and at the same time, lift the scanner out of the packaging and place it at
the installation site.
4. When doing do, make sure that you have free access to the workplace and do not trip over the
packaging.
Remove the upper
part of the packaging
Grip and tilt the scanner
at the upper holding point
(one holding point each side for
each person).
Lift the scanner at the same time
and place it at the installation site.
Installation
13
9. Installation
9.1 Installing the scanner
Please make sure that the mains switch is at the "0" position before installation. (The position of
the main switch maybe different)
Figure 4: Mains switch on the rear of the device
1. Connect the device to the USB cables using the USB ports on the rear of the device.
Fuse USB camera
USB device control
Mains connection
Installation
14
As each scanner has been calibrated individually at the factory, the data on the
installation CD is valid only for the corresponding scanner. This calibration data
contains a code that can be enabled only by the corresponding scanner. Therefore,
compare the serial number indicated on the data plate of the scanner with the serial
number indicated on the CD to make sure they match before installation.
2. Connect the other ends of the USB cables to USB connections on the rear of your
computer.
3. Connect the scanner to a power source via the mains connection on the rear.
4. Now switch the scanner on at the mains switch.
5. Now first switch the scanner off again and continue by installing the computer and
operating software.
9.2 Installing the computer
Install the computer following the installation instructions of the computer manufacturer.
9.3 Installing the software
If you have mistakenly installed an incorrect version of the software, you must uninstall the
incorrect version first.
If you are installing the Activity software on your computer for the first time, use the installation
CD provided with the scanner.
A window will open after inserting the CD. The "Setup" icon opens and must be selected to start
the installation.
Figure 5: Setup/Installation
Installation
15
Now select the required language (Fig. 6) and confirm your selection with the "Next" icon (Fig. 7).
Figure 6: Language selection
Figure 7: Setup Wizard
Define the installation location for the software by using the "Browse" button to define the path.
The installation program suggests a standardized path that you can use. Having selected the path,
please confirm this with "Next".
Installation
16
Figure 8: Select installation location
Define the software name in the "Select Destination Location Folder" window.
Then click on "Next".
Figure 9: Start Menu
Select whether you require a Desktop symbol and confirm with "Next".
Installation
17
Figure 10: Creating a Desktop symbol
Before starting the installation, check your selected settings and chose "Next". The installation
starts immediately (Fig. 11).
Figure 11: Installation
Installation
18
Figure 12: Installation
Confirm the installation of the driver with "Next". Then complete the installation with "Finish". The
drivers are now installed and the process is completed.
Figure 13: Completing the installation
Installation
19
9.4 Importing calibration data
The scanner–specific calibration data must be imported during the initial installation.
Start the Activity software via the Desktop icon or from the Start Menu.
This is followed by a software message (Calibration directory not found). Click "OK" to start the
"Installer Tool".
Figure 14: No calibration data
This tool makes it easier to install the required sensor data.
Click "Search" to select the file path (SO-202.... ).
When doing so, select only the parent folder and confirm with "OK".
Figure 15: Folder search
Installation
20
Click "Next".
The calibration data is imported into the Activity software.
Figure 16: Selected folder
The scanner installation has been completed; you can close the installer with "OK" and restart the
scanner software.
Figure 17: Implementing the sensor data
Calibration procedure
21
Spacer plate
Object base
10. Calibration procedure
10.1 Axis calibration
Start the scan software by clicking on the Activity icon located on
your Desktop.
Place the spacer plate in the scanner. Clamp the calibration model on the removable object holder
and place it in the scanner (Fig. 18).
Figure 18: Calibration model with spacer plate
The path Options Service Axis calibration contains the start command
for calibrating the axis.
Figure 19: Scan software calibration
Calibration procedure
22
If the axis calibration fails, please check the height alignment of the model in the
measuring field. (See Figure 18 )
Each calibrating block is measured industrially.
These individual values can be found on the calibration model.
The scanner now performs an automatic axis calibration. The following message will appear after
the axis calibration is complete:
Figure 20: Scan software calibration
10.2 3D calibration
Figure 21: Individual calibration block
These values must be saved in the software after reinstalling the software or replacing the
calibration model.
Calibration procedure
23
Repeat the calibration about every four weeks and each time the scanner is
transported in order to ensure the accuracy of the scan results.
Start this procedure as follows:
A window opens under Options Service Calibration object registration (Fig. 22).
Figure 22: Calibration model registration
Individual values are indicated on the rear of the calibration model. Please enter these in fields #1
and #2.
Confirm the procedure with "OK".
You can start the 3D calibration only by selecting the start command under the item Options
Service 3D calibration Complete.
The system now performs a 3D calibration; this can take several minutes.
The following message will appear at the end of the calibration (Fig. 23).
Figure 23: Completing the calibration
The 3D calibration was successful. Confirm with "OK".
Basic information about the device
24
If the axis calibration fails, please check the height alignment of the model in the
measuring field. (See page 16, Fig. 18)
11. Basic information about the device
11.1 Functioning of the Activity 850
The optical scanner with the designation "Activity 850" is used for the three-dimensional
measuring of jaw models, in orthodontic and prosthetic applications.
The most important components of the scanner are the 3D sensor and the positioning unit with
object holder.
The 3D sensor consists of a camera and a projector. The projector throws a light pattern onto the
object to be measured at an oblique angle of incidence; the object is simultaneously monitored
with the camera.
Since the camera cannot capture the entire object if the object is complex in shape, as in the case
of a jaw model, the object is mapped with a series of individual scans from various perspectives.
The software then combines the individual scans to create a complete data set.
The positioning unit positions the object to be measured in the required perspectives opposite the
3D sensor.
It contains motorized axes for this, which can rotate and tilt the model on the base relative to the
3D sensor.
The entire scanning procedure is extensively automated so that you only have to carry out the
essential operating steps.
A 3D scan is created as follows:
The model to be measured is mounted on the object holder:
The model is fixed on the object holder for this.
Prescan:
The prescan compiles a two-dimensional image of the clamped model.
This image serves as a basis for the following scan definition.
Scan definition:
The scan definition defines the positions in which the model is to be scanned.
The scan definitions are formulated using the prescan image after the user highlights the tooth
positions on the screen.
Basic information about the device
25
Individual measurements:
After completing the scan definition, the software automatically calculates a scan program for
recording the positions specified by the operator and starts these. The positions provided in the
scan program are started up by the positioning unit and a 3D measurement is performed.
When scanning adjacent tooth stumps, it is usually necessary to measure the stumps in isolation
without the adjacent stumps, as otherwise the interdental area cannot be captured by the 3D
sensor.
The software will therefore prompt you to present the relevant tooth stumps individually and
freely, i.e. to remove all other stumps from the saw cut model.
Matching and data storage:
The recorded individual measurements are grouped together in the "Matching" mode.
The finished data set is then saved on the hard disk of the computer.
Visualization:
When the matching process is complete, the scan result is displayed on the monitor so that you
can directly assess the result visually.
Operating controls
Basic information about the device
26
Lid/Case opening
Device designation
System drawer
USB port for the motor and
scanner control
USB port for the camera
Fuse
Power cord connection
The most important components and operating controls of the scanner are explained below.
Figure 24: Device front
Figure 25: Device rear
Basic information about the device
27
System drawer
Figure 26: Side view
Figure 27: System drawer
Basic information about the device
28
Use only the USB cables included in the scope of delivery, if possible. These have
undergone multiple testing at our company in conjunction with your scanner.
Communication problems can result between the scanner and PC if cable lengths
over 2 metres are used.
Device serial number
CE mark
3D sensor number
Figure 28: Data plate
Basic information about the device
29
Main/
Swivelling axis
Lid/Case opening
Rotating-
swiveling unit
Object base/
Model holder
3D sensor
(not visible from
outside)
Base holder
Rotatingswiveling unit
Mains switch
11.2 Interior
Figure 29: Rotating-swivelling unit
Figure 30: Rocker/Rotating-swivelling unit
Basic information about the device
30
Individual parts of the object holder
The scope of delivery for the object holder of the Activity 850 consists of the following
components:
1
3
4
5
2
Positioning unit (inside the scanner) :
The positioning unit contains the fixed base holder on which the object to be measured is fixed as
well as a rotating and swivelling unit powered by an electric motor.
Rotating and swivelling unit/Object holder:
The rotating unit allows you to position the object to be measured in any position relevant to the
camera of the 3D sensor located on the object holder via the electric motor.
The swivelling unit allows you to swivel the entire setup comprising rotating unit and object holder
and hence record side views of the object to the measured.
Interior lighting:
The interior lighting switches on automatically when the flap is opened. If the flap remains open
for longer than 5 minutes, the lighting will switch off automatically.
The interior lighting switches off automatically when the flap is closed.
11.3 Object holder
Figure 31: Individual parts of the object holder
Basic information about the device
31
System base plate
Key to the scope of supply of the object holder system
1. Calibration object for axis and 3D calibration.
2. Measuring range template for height alignment of the jaw model.
3. Hex key for clamping or loosening the plaster model on the model holder.
4. An additional spacer plate with magnet for height alignment.
5. Removable object holder for non-articulated jaw models. The model is fastened on the
object holder using a clamp. This clamp is fastened or released using the hex key (4).
Using the object holder system:
The object holder of the Activity 850 primarily comprises a system base plate fixed on a rotatingswivelling unit.
Figure 32: Object holder system
In order to ensure an optimum alignment of the model to be scanned in the measuring range, a
maximum of one additional spacer plate can be mounted on this.
The object holder can now be fixed on the base or spacer plate.
Basic information about the device
32
Incorrect height alignment is one of the most frequent reasons for unsatisfactory
scanning results!
Example: Standard model holder without spacer plate
Figure 33: Object holder system with model
11.4 Positioning the model on the object holder
Positioning:
The correct positioning of the model on the object holder is indispensible for correct measuring
results. The positioning must be maintained in respect to the "height alignment".
Height alignment:
The scanner has a definite height measuring range. If the object to be measured is located outside
this range, no measuring values will be measured there. This means that the finished scan will
exhibit holes or have a cut-off effect.
The scanner has a height measuring range of +/-25 mm, i.e. 50 mm in total.
Basic information about the device
33
To set the height of the object holder, start the scanner software before the setting the
height, so that the axes move into the reference position (this occurs automatically
when starting the program).
Figure 34: Height alignment
The height alignment can be checked using the measuring range template. To do this, place the
template on the rotating and swivelling unit and check the height in the cross hairs with the jaw
model.
A jaw model must be aligned so that the centre of the teeth is located at about the height of the
cross hairs. An alignment precise to a spacer is sufficient owing to the measuring range of total 50
mm (i.e. +/- 25 mm) above and below the "centre of the measuring range").
It is not usually necessary to realign each model in respect to height.
Since you will usually work with one model system in a laboratory, you can work with a standard
setting already defined in most cases. However, we recommend making sure that the height
deviation is not too great for each model to be scanned.
Mounting:
If necessary, fasten the required spacer plate on the base holder. Insert the relevant object holder.
Using "zero" spacer plates:
If it is necessary to move the spacer plate, place the object holder directly on the base holder.
Scanning procedure
34
Depending on the scanner and CAD software combination, it is not necessary to fill
out the project information thanks to a special interface, as this is automatically
undertaken by the CAD software (e.g. with dentCreate!®). The scanner uses software
messages to guide you step by step through the entire scanning procedure.
12. Scanning procedure
12.1 Clamping the model
Clamp the model in the removable object holder and align the height using the spacer plate (see
Figure 33).
12.2 Creating a prescan
Switch the scanner on at the mains switch. The scan software opens after starting by double
clicking on the "Activity" icon on your Desktop. An automatic referencing of the axes takes place.
The project entry screen appears:
Figure 35: "New project"
Information such as laboratory, dental technician, patient, etc. is entered in these entry fields. The
information entered here is added by setting the checkmark in the "New project" of the patient ID
(Project name). If you do not enter anything in the entry fields, the time and date data will be used
as standard.
After confirming with "OK", a new field will appear, allowing you to name the following
measurement.
Scanning procedure
35
During the prescan or the 3D scan, the symbol is displayed, and you can use this
to cancel the corresponding scanning process.
Figure 36: "New measurement"
After providing a name for the measurement, confirm this with "OK".
The scanner then begins with a preview image. After a few seconds, a 2D scan will appear on the
viewer, and you can select your individual scan type.
Figure 37: 2D scan and entry screen
Scanning procedure
36
Use the spacer plate to ensure the correct height alignment in the scanner. (see
Figures 33 and 34).
Case study:
In this example we shall scan a bridge of 34-36.
Select "Anatomically reduced coping" under scan type and click on teeth 34, 36 and 35 as
"Reduced pontic" in the tooth diagram. The teeth are now coloured with the relevant colour of the
scan type in the tooth diagram.
Coloured squares appear in the 3D viewer at the same time (see Fig. 37).
These squares indicate the scan position of the tooth. The corresponding colouring coincides
with the selected scan strategy/scan type under the tooth diagram on the left. Keep the left
mouse button pressed to move these squares over the centre of the corresponding tooth stump.
The scan software now detects the position of the tooth and will apply the corresponding scan
strategy for these coordinates.
If you wish to delete a scan position, click on the corresponding checkpoint in the tooth diagram.
You can change the scan type of a position in the same way. Select the new scan type and click
on the position that is to be changed in the tooth diagram. The scan type defined previously is
then replaced by the newly selected one. The colouring of the tooth highlighted in the diagram
changes correspondingly.
A tooth diagram of the jaw to be scanned is located at the upper left. Activate the "Jaw type"
checkbox to select whether an upper or lower jaw is involved.
Indicate under "Scan type" whether only one jaw model (standard) is to be processed or whether
you have more information to be scanned, such as a bite registration, a wax-up or a scan body
(abutment).
Below the tooth diagram, you will see several boxes that are coloured differently to make them
easier to distinguish. These checkboxes are used to activate scan strategies for the
restoration types, such as "Simple coping", "Anatomically reduced coping",
„"Veneer", etc. For this, please first select your required restoration types and then click on the
corresponding tooth in your tooth diagram.
You can learn about further procedures for operating the device based on the examples below.
12.3 Case study: bridge with bite registration
Scanning procedure
37
After aligning all scan positions, start the 3D scan with this icon.
The scanner now moves the model down automatically, based on the predefined scan strategy,
and compiles a number of individual measurements from various perspectives.
In the case of adjacent teeth, it is necessary to additionally measure the individual teeth
independently, as otherwise the interdental area cannot be recorded with sufficient accuracy.
The entire scene is therefore always measured in the first step, and in the second step you are
prompted to present one tooth each freely (see Fig. 40).
Figure 38: Starting the scan process
Figure 39: Prompt notification
Scanning procedure
38
Remove all teeth from the saw-cut model, apart from the one required.
Close the front flap and click "Continue" or "Continue with axis homing".
If "Continue with axis homing" is selected, a new reference travel of the axes, object holder or all
axes is first executed before the measurement is continued, after removing the stumps. The
object holder is moved into the predefined initial position for this.
This selection option is due to the fact that the motor driving the object holder could also be
turned by hand when switched on with a correspondingly high action of force. The motor is not
damaged by this, but the defined motor position is lost.
It may be the case in individual situations that greater force has to be applied for very tightly-fit
stumps, and the object holder is consequently turned inadvertently. Here a considerable "slipping
through" of the object holder can be heard, so that you usually recognize such a case. Select the
option "Continue" to continue the scan.
After the individual tooth presentation is completed, you can evaluate the scan data in the 3D
viewer for completeness (see Fig. 41).
You can rotate, move and zoom the model using the following mouse functions:
Rotate model
Left/Right mouse button
Move model
Both mouse buttons
Zoom
Scroll wheel
If the model scan exhibits holes or blurred areas, you can correct these with the rescan function.
A green cross is located at the top of the 3D viewer, which can be used to start the "Rescan
Mode".
Figure 40: Data set before "matching"
Scanning procedure
39
If "Rescan Mode" is enabled, this green cross will be shown in the centre of the 3D viewer (see
above). Now the edge of the data hole must be positioned below the cross using the familiar
mouse options (left mouse button rotate, right mouse button move and scroll wheel zoom).
If the centre of a hole is positioned directly below the cross, the scanner will move to
an incorrect rescan position and possibly a recording at another point.
Cross hairs
next to the area
to be scanned
Area to undergo a
rescan
Figure 41: "Rescan" mode
Figure 42: "Rescan"
Scanning procedure
40
If you click on the blue start button, any number of rescans can now be performed until all
desired areas are recorded.
For details, such as in interdental spaces, please remove all teeth that impair the
sensor's view of the area to be closed, e.g. directly adjacent teeth and segments that
are not required for the scan.
Once you have recorded all relevant details, click on the green cross again to complete the
rescan mode.
Select a cut function and click with the left mouse button around the required area. In this way,
you select the area on and around the model.
To complete the process, make the last selection with the right mouse button.
The model has been cut to size and can be reset with the "Undo cut action" icon.
The smaller the data set is cut to size, the smaller the data volume which has to be
added together.
Save the scan data after cutting the data set to size by clicking the "Save" icon.
To remove superfluous areas on the model, you can now cut the data set to size with the
following tool.
Cut data inside the selection
Cut data outside the selection
Undo the last cutting action
Figure 43: Save project
Scanning procedure
41
After completing the scan and cutting the data set to size, you need to perform a matching.
To do this, click on the following icon:
The recorded individual measurements are automatically added together by special
algorithms, and an STL is created. This process is known as matching. You can set the
quality of the STL under Item 10.4.
After matching the records, the completed data set is reloaded into the 3D viewer. If more areas
are missing, the rescan mode can be repeated on the STL data set.
Once the model data set is compiled, it is possible to add a bite registration scan to the project.
The bite registration function must be activated for this:
Figure 44: "Matching" process
Figure 45: 3D STL data set
Scanning procedure
42
You are then prompted to position the bite registration and give the measurement a name.
Once you have given the measurement a name and confirmed with "OK", a new information
window will appear.
Confirm with "Yes", and the device will immediately commence with the 3D scan based on the
selection created in the main scan (see Fig. 37).
After confirming the message with "No" , the prescan is started and you can then newly define
the selection for the bite registration in the prescan image (see Fig. 49)
Next the 3D scan is performed as usual with the following symbol:
Figure 46: “bite registration" symbol
Figure 47: Information window
Figure 48: Squeeze bite alignment prescan
Scanning procedure
43
After completing the 3D scan, you can evaluate the result and, if necessary, perform rescans, or
cut to size with the cutting tool described above. Save the change and start the matching
process.
The matching button for a bite registration scan is not enabled unless the model data
set has been matched previously.
The bite registration is then loaded into the 3D viewer and visualized.
Figure 49: Cut bite registration
Figure 50: Cut bite registration
Scanning procedure
44
Clamp the model on the removable object holder. Ensure the height alignment in the measuring
range. (See Fig. 34).
For certain applications, e.g. archiving in orthodontics, it is necessary to simply and
quickly scan a complete jaw. Unless high detail accuracy is required for this, we
recommend setting the thinning to MEDIUM or STRONG.
Create a new project as described in section 9.3 and start the 2D scan.
Select between lower and upper jaw correspondingly under "Jaw type".
Activate the "Complete jaw" checkbox under "Scan type" (see Figure 52).
12.4 Case study: complete jaw scan
Figure 51: Complete jaw 2D scan
Scanning procedure
45
A new control (blue line) is shown in the prescan view:
The scan range is adapted to the size of the object to be scanned using the yellow
checkpoints. The jaw must be inside the blue outline, the scan range.
Start the 3D scan.
The scanner now moves the model down automatically, based on the predefined scan positions,
and compiles a number of individual measurements from various perspectives.
move
shift
Figure 52: Complete jaw alignment prescan
Figure 53: Starting the scan process
Scanning procedure
46
After the 3D scan, cut the data set if necessary. Now start the STL calculation with the Matching
button.
The matching process for a complete jaw can take up to several minutes, irrespective
of the number and size of the scans to be matched or the selected thinning level and
computer capacity.
The jaw scan is visualized in the 3D viewer as shown below:
Figure 54: Complete jaw 3D scan
Figure 55: 3D-STL data set
Scanning procedure
47
You can tell from the colouring of the file tab whether a data set is already "matched",
i.e. whether there is an STL. (Blue - individual records, Yellow - STL data set,
Grey - 2D scan) (see Fig. 57)
You can also scan a jaw pair in occlusion.
In our example, we shall also scan the lower jaw scan from section 9.3. (3-member bridge) and
the upper jaw scan from section 9.4. (complete jaw scan) in occlusion.
To do this, we compile the scan data for the upper jaw and the lower jaw as described above.
Matching is not yet carried out.
Sample images:
Figure 56: Tabs
12.5 Case study: occlusion scan
Prescan lower jaw STL of the lower jaw
Prescan upper jaw STL of the upper jaw
Scanning procedure
48
As soon as you have scanned in the lower and uppers jaw, you must perform a "vestibular
scan", which allows the software to calculate how the jaw halves are located relative to
one another.
The scanned jaws do not have to be matched, as all scans performed are added
together at the end of the process.
You can align the models with an elastic band, adhesive stick or other fixing option, so that the
models sit rotationally secure to one another.
Place the models fixed to one another in the scanner and close the lid.
Use the spacer plate to ensure the correct height alignment.
You must activate "Add dental scan" by clicking on the following icon to carry out a vestibular
scan:
Give the file a name and perform a prescan.
Figure 57: Fixed jaw
Figure 58: Add dental scan
Scanning procedure
49
Once the prescan has been performed, click on "Antagonist Alignment" in the left of the project
entry screen, after which you can select what method is to be used to perform the vestibular
scan.
NOARTICULATOR:
This procedure allows you to align both jaws to a bite (with non-articulated jaw models) as long
as these are fixed manually to one another, as in the example.
A blue outline will appear in the 2D image after clicking on "NOARTICULATOR".
Align this to the vestibular progression of the 2D scan (see Fig. 62).
Figure 59: New measurement
Figure 60: Antagonist Alignment
Scanning procedure
50
Start the scanning process as usual.
The outer sides (vestibular view) are scanned by the device, as shown below:
Click on the articulation icon:
The software now indicates in succession which jaw has to be loaded.
First confirm the "Lower jaw tab" with OK. Then proceed in the same way with the "Upper jaw
tab".
Figure 61: Prescan
Figure 62: Vestibular scan
Figure 63: "Articulation" icon
Scanning procedure
51
The alignment for the "NOARTICULATOR" must always be performed with the 3-point
method.
To obtain a complete, mutually aligned STL data set from both jaw halves, the
individual scans must be added together. You have to indicate reference points on
the scans for this.
Select at least three reference points by clicking on them once with the left mouse button. Points
which you can find again on the vestibular image are ideally suitable for this.
If you have clicked on a point by mistake, you can undo this by with the "Delete" key
on the keyboard.
You can move the scan image with the right mouse button and rotate the view in the
3D viewer with the "Shift" key and the left mouse button.
Once you have highlighted at least three points, press the "space bar" on your keyboard to toggle
between the lower jaw scan and vestibular scan.
Search for and select the same points as previously for the vestibular scan.
Figure 64: Select lower jaw Figure 65: Select upper jaw
Scanning procedure
52
Once you have selected the reference points of the lower jaw to your satisfaction, click on the
"Next" icon in the viewer to load the upper jaw.
Follow the same procedure as with the lower jaw and select the "Next" icon again once you are
satisfied with the selection.
A calculation for the jaw is now carried out. After a few seconds, the result will be displayed to
you in the 3D viewer, which you can then check for correctness.
Figure 66: Lower jaw alignment
Figure 67: "Next"
Figure 68: Upper jaw alignment
Scanning procedure
53
You can detect an offset more easily using differing colour schemes for the upper
and lower jaw.
If you are pleased with the data set, confirm with the "Next" button, after which the software will
automatically commence the matching process.
All data sets performed are now matched. This can take several minutes.
Sample image for a finished STL data set in an upper versus lower jaw situation:
The data sets can now be loaded into various CAD programs for further processing.
Figure 69: Aligned upper and lower jaws
Figure 70: Articulated STL data set
Symbols
54
Activity icon
Perform 3D scan
Perform 2D scan
Move automatically to the service position
Open a new project
Open an existing project or STL file
Start the matching process
Add a new measurement
Add bite registration
Add wax-up
Continue in workflow
13. Symbols
13.1 The symbols
Symbols
55
Cut data inside the selection
Cut data outside the selection
Undo the last cutting action or measurement
Open the dialog "Fill holes"
Save the last work step (possible if activated blue)
Open "Settings" dialog
Information on the product
End the Activity program
Symbols
56
Show camera angle
Show front view
Show rear view
Show left side
Show right side
Show upper side
Show lower side
Show data set in isometric alignment
Rotate the object around the X axis only
Rotate the object around the Y axis only
Rotate the object around the Z axis only
Normal rotation mode
13.2 The 3D viewer symbols (object view)
Symbols
57
13.3 Activity Menu options
Figure 71: Activity Menu options
13.4 Options Settings Matching
Figure 72: Settings - Matching
Cylinder:
The checkbox is used to activate a cutting filter, which cuts the upper and/or lower area of
the STL data set. The dimensional unit is millimetres.
General settings:
Thinning out is used to determine the STL accuracy and hence the data size.
The maximum resolution of the sensor is reproduced at "OFF".
A somewhat larger spacing of the pixels to a data set is linked under "LOW".
This spacing is enlarged further at "MIDDLE" and "STRONG".
"AUTO" varies the thinning out as selected. The stronger the thinning out, the smaller the
linked data set. The greatest accuracy is therefore attained when thinning out is set to
"OFF" or "LOW".
Symbols
58
13.5 Options Settings General
Figure 73: Settings - General
Saving images
BMP:
A BMP (bitmap) of the relevant recording position is created upon activation.
This image, in which the light stripe pattern can also be seen, is also saved in the project
directory. These images serve as an aid if any measuring errors occur.
2D viewer
Brightness:
You can set the light intensity of the camera live image here. These settings do not have
any effect on the 3D measurements.
3D viewer
Colour top:
You can set the background colour of the viewer for the upper area here.
Colour bottom:
You can set the background colour of the viewer for the lower area here.
Object colour
You can determine the colour in which the 3D object is to be displayed here.
Symbols
59
Object colour rescan
You can determine the colour in which the last manually added image is to be displayed
here.
Smooth shading
Smoothes the surface of the 3D object in the viewer additionally. This setting does not
have any effect on the 3D measurement.
Reflection brightness
You can adapt the reflection of the light on the object in the 3D viewer here.
Reflectivity
You can determine the intensity of the reflection on the object in the 3D viewer here.
transparency
If you activate the checkbox, you can change the button command assignment on your
mouse for moving and rotating the object in the 3D viewer.
Plaster appearance
The light intensity of the sensor during the measurement is influenced by this. "Bright" for
white plaster, "Standard" for beige-coloured, and "Dark" for very dark plaster.
General settings:
Accompany actions with sound
If activated, the computer will emit a signal for every prompt via the installed speaker.
However, this function is not supported by every PC system.
Show errors
If you activate "show errors", a window
with the corresponding error message and description will appear if exceptions occur.
Show pixel cloud when rotating 3D view (for speed)
If you activate the checkbox, the object will be displayed in the 3D viewer as a pixel cloud
when moving with the mouse. This optimizes the visualization speed during the
movement.
Log information
If activated, every work step of the scanner and software as well as
the joint communication is saved in a special folder.
This function is necessary for technical support.
A log file is written that logs all settings and procedures and issues a detailed error
message if problems occur.
Fill large holes
If sporadic "data holes" appear after a scan, you can close these
using the “Fill holes" function. The size of the hole to be closed is limited upwards by
entering the area in mm2. We recommend that you use this function for flat surfaces only.
Symbols
60
Incomplete areas at preparation limits or sharp, occlusal edges should not be extended by
this, as the area to be replaced is only interpolated.
Show measurements at the highest resolution
If you activate the checkbox, the object will be displayed in the 3D viewer at an even higher
resolution. The object calculation when adding new records as well as during movements
requires much greater capacity from the graphics card and can lead to time delays.
Prompt for matching on raw scan data
You can use this function to define whether matching is to be made to the existing STL
or to the existing individual images. The query is only set for an existing STL.
Always base matching on raw scan data
To create the STL, the existing individual images are used again during rescans or
supplementary scans, and an existing STL is never added for calculation.
Always delete scan data on program exit
The existing individual images are automatically deleted irrevocably when the program
closes.
Symbols
61
13.6 Options Settings Installation
Figure 74: Settings - Installation
Work Folder:
The storage location of the scan data can be changed here. All data is created and saved in
this folder.
Dental System:
You can indicate what tooth scheme you prefer in the Dental System.
Language:
The language of the user interface is set here. The following are available for selection:
German, English, Spanish, French, Italian, Portuguese, Romanian, Turkish, Chinese,
Chinese Traditional, Greek and Russian.
Maintenance and servicing
62
14. Maintenance and servicing
The axes should be calibrated every four weeks using the calibration model supplied to ensure
consistently good results. They should also be calibrated each time the device is transported. We
also recommend performing an axis calibration at temperature fluctuations of +/- 15 °C.
The scanner should be cleaned regularly when in service. To do this, turn the scanner off and use
a vacuum cleaner to carefully remove any dust and foreign objects that have accumulated in the
base area of the scanner.
The optics of the 3D sensor are situated in the upper area of the interior of the scanner. Do not
attempt to clean them, as inappropriate cleaning may result in damage.
Cleaning with a slightly damp microfibre cloth is sufficient in most cases. Do not use paper
towels, etc., if at all possible, as they can easily scratch the sensitive plastic surfaces.
Please do not treat the case with strong cleaning agents.
15. Faults and repairs
Please remember that the scanner is a sensitive optical device. Maintenance and repair may
therefore be performed only by trained technicians.
Faults that cannot be cleared by restarting the scanner or the program should be referred to
customer service.
16. Environmental factors and disposal
16.1 Packaging
You can return the packaging to your dealer for disposal.
We strongly recommend that you keep the packaging so that it can be used if you need to
transport the scanner or if you have to return the scanner to us in the event of a warranty claim.
16.2 Disposal
You can return the scanner to the manufacturer or dealer for disposal.
Please remember that the scanner is designed exclusively for commercial or industrial use.
It must therefore not be taken to public waste facilities for disposal.
Please contact your dealer or the manufacturer regarding disposal.
You can find out more at www.smartoptics.de by going to Company and then Environment.
WEEE registration number: DE47893210
Imprint
63
17. Imprint
Manufacturer:
smart optics Sensortechnik GmbH
Sinterstr. 8a
44795 Bochum
Germany
Please contact your dealer if you have any questions.
We reserve the right to make changes due to technical progress.
Loading...