User Manual
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© 2014 E4D Technologies All rights reserved. 11513700.C
Contents
Introduction
Installation
Before Opening Compare
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4
5
File Sharing Setup
Sharing Files
Create Student or Master Model
Exporting the Files
5
5
6
8
Open Compare
Using the Mouse
The Workflow
A. Loading Models
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9
9
9
Screen Layout Options
B. Verify the Student Data
11
12
Define
12
C. Align the Models
D. Define the areas of the preparation
ICE View
E. Occlusal Angle (Path of Insertion)
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14
15
16
F. Compare
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Compute Difference
Spot Check Details
Slice Plane
Distance
Shoulder Width
Total Occlusal Convergence
Axial Wall Height
Undercuts
17
18
18
19
19
20
21
21
G. Report
Switching Cases
Taking Screenshots
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23
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© 2014 E4D Technologies All rights reserved. 11513700.C
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Introduction
Romexis Compare™ is used by teaching institutions to evaluate scanned models of a tooth prepared by
students in relation to a master model prepared by an instructor.
The preparations can be visually compared and measured on very specific aspects.
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•
•
•
•
•
Difference measurements between the master model and the sample
Shoulder width
Total Occlusal Convergence (TOC)*
Axial wall height
Undercuts (visual evaluation only)
Manually selected measured distance
The instructor prepares the master model and scans it with Planmeca PlanScan™. The same master file can
be used repeatedly for multiple students. The instructor’s master model does not need to be scanned each
time.
Installation
Note: Trial versions can be accessed 25 times.
Minimum System Requirements
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•
•
•
Windows 7 64-bit
4GB RAM
GeForce or Radeon video card
Mouse with scroll wheel
Install Instructions
1 Open the Compare Installation folder.
2 Double-click dxwebsetup to install it. Follow the installation instructions. An internet connection may
be required to run this setup.
3 Double-click Compare_2.x to install Compare.
A Compare icon and a Report Compiler icon appear on your computer’s desktop. The software installation is
now complete.
Sample Cases Available
If desired, download the Sample Cases to your My Documents folder or wherever you would prefer
to save them for easy access. https://drive.google.com/file/d/0BwblCaOATtJ_STNKUUlUd0ExN2c/
edit?usp=sharing
There are 4 sets of sample cases: two posterior cases, two anterior cases. Tooth 19 is recommended as the
first sample case.
*Goodacre, Charles J. Campagni, Wayne V. Aquilino, Steven A. (2001) Tooth Preparation for Complete Crowns: An Art Form Based on Scientific Principles. The
Journal of Prosthetic Dentistry, April. 363 – 376.
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© 2014 E4D Technologies All rights reserved. 11513700.C
Before Opening Compare
Note: For information on using the scanning software, see the PlanScan User Manual.
File Sharing Setup
There are two ways to deal with the data. Select your desired method.
•
•
Export the files for easy transfer to USB or via the network (most commonly used). See “Exporting the
Files” on page 8.
Access the files via a desktop shortcut (details below)
Access Files via Desktop Shortcut
These are suggested steps to create a shortcut to the patients folder.
1 Click File Explorer in the bottom left corner of the Windows Taskbar.
2 In the address bar, type C:\Users\E4D User\AppData\Local\Temp\CadCamTemp\ and press Enter.
3 The Patients folder appears.
4 Right-click and drag the Patients folder to the Desktop and select Create Shortcuts Here.
You may wish to set up another shortcut for the destination folder if the files will be used on another
computer.
Sharing Files
If Compare will not be used on the same computer where the models were scanned, copy the entire patient
file of each master and student to the desired location. The files can be stored on a network server, USB
drive, online server, etc.
Copy the master files to a permanent folder on the computer or network. The patients link on the desktop is
to a temporary folder. These files are eventually deleted. If a case is no longer in the temporary folder, open
the case in PlanScan to refresh the information.
© 2014 E4D Technologies All rights reserved. 11513700.C
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Create Student or Master Model
The same master model can be used repeatedly and shared among multiple computers.
1 Prepare the master according to the institution’s preparation guidelines.
2 Open Romexis.
Adding a New Patient
1 Click Add Patient.
2 Enter your First and Last Name. Enter a Patient ID if required (bold).
3 Click Save Patient.
Note: Patient files are organized by Patient ID on the computer, so you must make note of
the Patient ID or create one that will be easy to reference later.
Find Existing Patient
1 Enter the first few letters of the last name and press Enter or click Find without any search criteria to see
all patient files.
2 Double click a patient file to open it.
Scan the Model
1 Click CAD/CAM.
2 Click New Scan Only.
The Setup tab appears.
3 Select a restoration site by clicking on the anatomical model. If no teeth have been
selected, the anatomical model is closed until the mouse cursor is moved near it.
4 Select random choices for the Tooth Library, Material, and Shade.
Note: The information from the Setup tab is not imported into Compare, but it
is necessary to fill in the Setup information to continue.
5 Click the Scan tab.
6 Click Prep on the left side of the screen.
7 Press the button on the scanner to begin scanning.
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© 2014 E4D Technologies All rights reserved. 11513700.C
The system displays a model based upon the scan data. The Live View appears on the right and the model
builds on the left. Watch the model building on the left to see what information has been captured and
where you need to move the scanner.
Start with an occlusal scan of the preparation. Move in slow and steady motions to capture the proximal
teeth and rotate to capture all of the preparation.
Goal:
100% of Prep and 90% of adjacent
occlusion
Note: Neighboring occlusion is
necessary to align the models.
The system changes the Live View to orange if you have moved too far and the system needs data overlap.
The most recent scan added to the model displays with a color coding to indicate the focal distance of the
data added.
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•
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Green - close to the tip
Yellow/Orange - middle of the range
Red - end of the range (far away from tip)
Note: Any color shown means the scanner IS capturing data. The colors only
correspond to the focal distance.
The building model rotates to match the Live View.
8 Click the button on the scanner to stop scanning.
A raw data model is displayed.
9 Click Generate Model or press M on the keyboard to create the 3D model. If you exit without generating
the model, the scans will be lost.
10
Click Data Density View to evaluate the model for low data. Dark blue and purple areas indicate
low data. Ensure there is no missing data on the preparation. Rescan the area if needed.
11 Return to the Patients screen.
© 2014 E4D Technologies All rights reserved. 11513700.C
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Exporting the Files
By exporting the file as a CAD/CAM case, ICE view is available for marking the margin.
1 Click File - Export - Export CAD/CAM Case.
2 Create a destination folder on the desktop with the student’s name (ex. John Doe) and enter a file name
(ex. Crown 5). Click Save. The file is exported as a compressed zip file.
3 Close or minimize Romexis.
4 On the desktop, open the student’s folder (ex. John Doe).
5 Right click the zip file and select Extract All.
6 The default option is to extract the files to the same location. Click Extract.
7 Double click the extracted folder (ex. Crown 5) to open it. Open the time and date stamped folder (ex. [811-2014 1.08.24 PM]). Copy the Prep folder.
8 Paste the Prep folder into the student’s folder.
9 Right click and Rename the Prep folder according to the tooth number or exercise or other preferred
naming protocol. This name will be the identifier for the case within the CSV report.
10 The renamed Prep folder can be copied onto a USB, uploaded to an FTP, or shared over the network.
Open Compare
1 Double-click the Compare icon on your desktop to open the software.
2 Double-click the title bar to make the software full screen.
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© 2014 E4D Technologies All rights reserved. 11513700.C
Using the Mouse
When rotating the model, the central axis point is the center of the screen (not the center of the model).
Select position pointer on
item and click left button to
select
Zoom Model rotate the
wheel button to change
the size of the model on the
screen
Rotate Model press and hold
the right button, then drag
Move Model
up/down, left/right:
press and hold the wheel
button, then drag.
The Workflow
A Load the models
B Verify the student model - is there missing data that would provide incorrect
measurements?
C Align the models (if necessary)
D Define the areas of the preparation
E Set the Occlusal Angle (path of insertion)
F Compare
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Compute the differences between the two models
Measure the aspects of interest
G Report
A. Loading Models
1 Click Load Master on the left side of the screen.
Note: The master model is used to compare the two models and evaluate the differences
in the preparations. The master model is not necessary if you only want to measure the
various areas of the sample model.
© 2014 E4D Technologies All rights reserved. 11513700.C
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2 Navigate to the folder where you are storing your master files or use the Patients shortcut on the
desktop.
Note: To use the provided models, double-click the Sample Cases folder and click once
on the desired master file. Tooth 19 Master is recommended as the first case. Highlight
the desired folder and click Select Folder at the bottom. Skip ahead to the loaded master
picture below.
All of the Patient folders are listed by Patient ID.
3 Double click the desired Patient ID.
4 Double click the patient name folder.
5 Double click the Restorations folder.
6 Double click the desired date file.
7 Single click the Prep folder to highlight it.
8 Click Select Folder at the bottom.
The system loads the selected case into the Master and Master/Sample sections.
9 Click Load Sample.
10 Double click the Patients folder (or other location for your master files) to open it.
11 Double click the desired Patient ID.
12 Double click the patient name folder.
13 Double click the Restorations folder.
14 Double click the desired date file.
15 Single click the Prep folder to highlight it.
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© 2014 E4D Technologies All rights reserved. 11513700.C
The system loads the selected case into the Sample and Master/Sample sections. There is a slight delay as
the system automatically aligns the two models.
Note: If no model loads, you may have selected the wrong folder. Try the Preop folder or
return to the case in Romexis to see which scan type was selected when the model was
created.
Screen Layout Options
There are 5 options for viewing the models: 2 split screen options and 3 individual model views.
Click the Screen Layout buttons to change the views when desired.
© 2014 E4D Technologies All rights reserved. 11513700.C
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B. Verify the Student Data
The student should evaluate their model when it is scanned to ensure there is no missing data on the
preparation. The model can be evaluated in Compare to ensure all of the measurements are accurate.
1 Click Sample View.
2 Click Data Density to evaluate the model.
The dark pink areas indicate low data density. Rotate the model to evaluate and verify that there is no low
data on the preparation.
Rotate Model press
and hold the right
button, then drag
Note: The rotation of the
model is based on the
middle of the screen.
3 If there are areas of low data on the preparation, have the student rescan or keep that area in mind
during the evaluations.
Define
C. Align the Models
If the master and sample models are scanned at different angles or if there is not enough of the neighboring
teeth scanned in, the models may not align automatically.
Note: The only sample cases that need manual alignment are for Tooth 3.
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© 2014 E4D Technologies All rights reserved. 11513700.C
1
Click Define.
2
Click Drag Align on any cases that need to be manually aligned.
The view changes and the two models are separate on the screen.
Click in the middle of the master (white) model and drag it down to the sample (stone) model.
Move the sides of the master to rotate it.
Continue moving the master model until
the two models are close in alignment.
3 Click Accept.
The system uses the new positions to create the alignment.
Note: If you are dissatisfied with the new alignment, click Reset
© 2014 E4D Technologies All rights reserved. 11513700.C
and start over.
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D. Define the areas of the preparation
The next step is to designate the different areas of the preparation. These are defined on the student model
only.
1 Select an area to define.
Tissue
Axial Base
Margin
Occlusal
Note: Tissue is not currently used for
calculations.
The screen layout is changed to show the sample model.
Note: Tooth 19 Sample case has the margin and axial base already defined on the model.
2 Select your drawing tool.
Trace - Click in small increments along the edge you are defining. The system draws a straight line
between each click.
Wand - Click in large increments along the edge you are defining. Use this tool only on high contour
edges.
3 Click along the edge of the area that you are defining. When you connect to the starting point, the circle
is completed.
Note: See the Using the Mouse section for how to manipulate the 3D models. The rotation
of the model is based on the center of the screen, not the center of the model.
4 Once the area has been defined, the tool automatically changes to the Move tool. You can click and drag
areas of the occlusal line to adjust them or use the Add Segment tool to redraw a section.
Note: You can hover over a different line to change the focus and edit any of the
defined areas.
5 Use the editing tools to adjust your line until you are satisfied with it.
Drawing and Editing Tools
Edit Curve Tools - There are three tools: Move, Add Segment, and Delete. Use
the bar graphic to change the area of influence if desired.
Move is activated by default after an area has been defined. Click and drag
any section line.
Click Add Segments to redraw a section. Click the button to indicate you are
finished with the new section.
Click Delete to remove a circle and start over.
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© 2014 E4D Technologies All rights reserved. 11513700.C
6 Click another area icon to define it. As each area is defined, the icon for it is gray.
Repeat the above steps to define each area. The Tissue area is not used for calculations at this time.
ICE View
ICE View is available if the model was two-toned. This can aid in seeing equigingival or subgingival margins.
None of the sample models require the use of ICE, but they were scanned using two-toned models so that
you can see how the ICE View works.
© 2014 E4D Technologies All rights reserved. 11513700.C
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E. Occlusal Angle (Path of Insertion)
After the margin has been drawn, you can verify/adjust the path of insertion. The path of insertion is used to
determine if there are undercuts in the preparation.
1 Click Occlusal Angle.
2 A cylinder appears over the preparation. Rotate the model until you are viewing the preparation from
the occlusal surface or view.
Note: None of the sample cases have drastic undercuts, but minor undercuts can be seen
on some of the anterior cases.
3 Click and drag to reposition the cylinder if necessary. Larger preparations may not fit within the circle.
The goal is to align the cylinder with the path of insertion.
Once all the areas of the preparation have been defined, the sample model is ready for analysis.
F. Compare
Note: Some of the example measurements in this document are used to illustrate the
different color maps and may not be realistic “ideal” measurements that would be used to
evaluate a student.
Click Compare. A new set of tools appear.
Each tool has a different Ideal and Tolerance option. To change the ideals and tolerances, use the sliders
and/or type into the text fields using the numbers above the letters (not the number keypad).
Hover the mouse over a measured area to see the specific data for that spot.
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© 2014 E4D Technologies All rights reserved. 11513700.C
Compute Difference
Click Compute Difference.
The screen layout changes to the Sample and Master views. The system calculates the differences between
the two preparations. This is the only tool that uses the Master model. The rest of the computations are
based on the areas that were defined in the previous section.
Use the slider or the number field next to Compute Difference to change the tolerance level.
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Red: Over-reduction
Blue: Under-reduction
Yellow/Green: Within the tolerance range.
The information panel displays the numeric details. The details on the information panel are filled in as each
Compare tool is activated.
You can show/hide the information panel with the Information button.
© 2014 E4D Technologies All rights reserved. 11513700.C
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Spot Check Details
Place the mouse cursor over any spot on the model to see a specific measurement. This can be used with
any of the measurement tools.
Slice Plane
Slice Plane can be used to slice the combined model and see the differences between the two models.
Note: Slice Plane can be used at any time. Compare Difference does not need to be active.
1 Click Combined Model View.
The system shows the two models combined. The sample model is yellow. The master model is white.
2 Click Slice Plane.
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3 Click a different Slice Orientation, if desired.
© 2014 E4D Technologies All rights reserved. 11513700.C
4 Click and drag the edge of the circle to change the location of the slice.
5 Rotate the model to view the slice from the side. Use this as a visual evaluation or you can use the
Measure tool.
Distance
Use the Distance tool to measure the space between two custom points.
1 Click Distance.
2 Click the Draw button.
3 Click the first point of interest.
4 Click the second point of interest.
A line appears with the distance between the two selected points.
Repeat as many times as desired.
5 Click the Delete button to remove any unwanted lines.
6 Click the Distance button to show/hide the measurements.
Shoulder Width
1 Click Sample View if you are still in the combined view.
2 Click Shoulder Width.
© 2014 E4D Technologies All rights reserved. 11513700.C
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The system computes the distance between the previously defined axial and margin lines. A color map is
displayed and shows any areas that are outside of the selected tolerance.
3 Change the Ideal shoulder width and the tolerance if desired.
4 Use the mouse to do spot checks or use the Distance tool if desired.
Total Occlusal Convergence
1 Click Total Occlusal Convergence.
The system measures the angles of the opposing axial walls. The margin, axial, and occlusal lines are all used
in this calculation.
2 Change the Ideal degree and the tolerance if desired.
3 Use the mouse to do spot checks or use the Distance tool if desired.
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© 2014 E4D Technologies All rights reserved. 11513700.C
Axial Wall Height
1 Click Axial Wall Height.
The system measures the distance between the axial and occlusal lines. Change the ideal height and
tolerance if desired.
2 Use the mouse to do spot checks or use the Distance tool if desired.
Undercuts
Click Undercuts.
None of the sample cases have drastic undercuts, but minor undercuts can be seen on some of the anterior
cases. Red shading indicates an undercut area. This is determined by the Occlusal Angle.
Undercuts is a visual evaluation only. This information is not included in the Report.
© 2014 E4D Technologies All rights reserved. 11513700.C
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G. Report
You can create a .csv file which can be opened in a spreadsheet software such as Microsoft Excel or
Google Sheets. You can then create reports and charts in the spreadsheet software that compare the various
preparations from one student or multiple student results on one preparation.
Saving Individual Reports
The report saves the measurements that are displayed in the Information panel. Click the
Information icon to show/hide the panel. Ensure all of the desired measurements have been
created before saving the report.
1 Click Load/Save.
2 Click Report.
3 Select a destination folder and enter a file name. Click Save.
Note: Reports should be grouped by student or by class, depending on the University’s
preferences.
Combining the Individual Reports
Once you have multiple .csv files, you can use the Report Compiler to combine the information and import
the data into your spreadsheet software for graphing and comparisons.
1 Minimize or close Compare.
2 Use Windows File Explorer to organize the desired files. The compiler combines all of the individual .csv
files in the designated folder into one large file. You may need to copy/paste the desired files into a single
folder before running the compiler.
•
•
Combine all of the files for one student into a folder. This would enable you to see their overall scores
or their progression over time.
Combine the same preparation results from multiple students into one folder. See how multiple
people handled the same assignment.
3 Double click the Report Compiler icon on the desktop.
4 Click Select Reports Directory.
5 Single click the desired folder to highlight it and click OK.
Note: All of the .csv files that you want to combine must be in a single folder. The compiler
will NOT include files that are in sub-folders.
6 Click Save Compiled Report.
7 Find the desired location for the report file, type in a name for the file, and click Save. This creates a new
.csv file. It should NOT be saved in the same directory as the individual files.
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© 2014 E4D Technologies All rights reserved. 11513700.C
Opening .CSV Files
To open a .csv file in Microsoft Excel:
1 Click Open in Excel.
2 Change the file type to All File Types.
3 Find the desired file and click Open.
To open a .csv file in Google Sheets:
1 Click Upload to add the file to Google Drive.
2 Find the desired file.
3 Check the Convert Documents option.
4 Click Start Upload.
To create graphs or charts based on the data, please see the help files for your spreadsheet software.
Switching Cases
If you open a new master or sample case, the system attempts to align the models, even if they are not a
match. Continue and open the matching master or sample model.
Taking Screenshots
You may wish to take a screenshot to aid in communication with others in the school or with Customer
Support.
Note: Windows+Print Screen is not available within Compare.
Some versions of Windows include a program called Snipping Tool that you can use to capture part of the
screen and then save or copy it into an email.
All Windows computers allow you to press Alt+Print Screen to put a picture of your screen on the clipboard.
You can then open Paint or another graphics program and Paste the picture to save it.
© 2014 E4D Technologies All rights reserved. 11513700.C
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© 2014 E4D Technologies All rights reserved. 11513700.C
Enter your First and
Last Name. Enter a
Patient ID if required
(bold).
Click Save Patient.
2
3
Double click a patient
file to open it.
2
Click New Scan Only.
Click CAD/CAM.
Enter the first few
letters of the last name
and press Enter or
click Find without any
search criteria to see
all patient files.
1
Find Existing Patient
Click Add Patient.
1
Adding a New Patient
Open Romexis.
PATIENT
Click File - Export
CAD/CAM Case.
Save file in Student’s folder.
Minimize Romexis.
Extract the zip file.
Copy and rename the Prep
folder.
1
2
3
4
5
Export
Click Return to CAD/
CAM Home.
Click Data Density
View to evaluate for
low data on the prep.
Load sample.
Student file location:__________________________________________________
Mark the Axial Base.
Mark the Occlusal Table.
2
3
Click Load/Save.
Click Report.
Save the .csv file. Report file location:______________________________
Send the .csv to your professor.
2
3
4
ideal deg:____
deg:_______
um:_______
ideal:______
Total Occlusal
Convergence
Shoulder
Width
1
Report
um:_______
Compute
Differences
Compare/Measure - Click each button
Set the Occlusal Angle (Path of Insertion)
Mark the Margin.
1
Define Areas
2
QUESTIONS? Contact Support @ 800.537.6070
Load master. University master file location:_______________________________
Load Models
1
Open Compare.
100% of Prep and 90%
of adjacent occlusion
COMPARE
Click Scan Prep
SCAN
Compare Workflow
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