How to Add a Smooth Base to a Dental Model in SelfCAD

 |  Moses Zikei

Smoothing the Base of a Dental Model in SelfCAD

SelfCAD is a 3D design software that integrates 3D modeling, sculpting, and 3D printing capabilities into one platform, making it useful for artistic, technical, and 3D printing. It offers a user-friendly interface and various tools for creating 3D models from scratch or modifying the ones created in other programs, including 3D Scans.  

Steps to Adding a Smooth Base to a Dental Model

In this section, we will learn how to add a smooth base to a dental model using the various SelfCAD tools. To start, launch SelfCAD and open the workspace:

SelfCAD interface

From the File menu on the top toolbar, click Import:

Option to import files to SelfCAD

Click Load Object from the Tutorial:

SelfCAD interactive tutorial

On the right side panel, click on the Face Coloring to activate it:

Face coloring in SelfCAD

Click on the Rotate Tool on the toolbar, and set X to 90:

Rotate tool in SelfCAD

Click “X” to close the transformation panel. On the toolbar, from the Modify category, select the Simplify Object:

Simplify object tool in SelfCAD

Set the Intensity to 5 and tick the check mark to finalize Simplify Object:

Settings in SelfCAD

Click Copy to copy the selected object:

Copy option in SelfCAD

Activate the Move tool on the toolbar and use the highlighted gizmo to move the X to 71:

Move tool in SelfCAD

On the right side, activate the Edge Selection and click on the gear icon to open the Edge selection settings. Click on the Select Loose and click “X” to close the panel:

Edge selection tool in SelfCAD

From the Deform category, select Flatten:

Deform tool in SelfCAD

Use the highlighted gizmo to set Y to 0:

Settings in SelfCAD

Click on the “X” to close the panel. Then, de-select the highlight regions (You can click on the grid to de-select).

From the Tools category, select Fill Polygons:

Fill polygon tool in SelfCAD

Tick on the check mark to finalize Fill Polygons:

Fill polygon options in SelfCAD

There you go, the polygon has been filled beautifully:

3D models in SelfCAD

Click on the Inverse Selection, to inverse the selection. Click on the gear icon to open the edge selection settings. Click on the Select Loose, and then click Copy:

Inverse selection tool in SelfCAD

Click “X” to close the selection settings panel:

Closing the workspace

Click Copy again:

Copy option in SelfCAD

Activate the Move tool and set the Move mode to Move By. Set the Y to -1:

Move tool in SelfCAD

Close the transformation panel, then click on the object name below:

Clicking 3D objects in SelfCAD

Change the object name to 2nd:

3D designing in SelfCAD

Select the profile_1 and 2nd. On the toolbar, from the Tools category, select Bridge:

Bridge option in SelfCAD

Set the Fill Last to false, and tick the check mark to finalize the Bridge:

3D modeling in SelfCAD

On the selection tools on the right-side panel, activate the Polygon Selection, and select the highlighted region as shown below. Then from the Deform category, select Flatten:

Polygon option in SelfCAD

Use the highlighted gizmo to set Y to 0:

3D model in SelfCAD workspace

Turn off the regions selected. Then select the mesh and the shell_occlusion_1. Then on the top toolbar, on the Edit menu, select Merge:

Edit option in SelfCAD

There you go, you have added a smooth base to the dental model:

Dental 3D models in SelfCAD

Understanding this technique of adding a smooth base to a dental model is very important for ensuring accuracy and stability in dental procedures. With the steps outlined in this guide, dental professionals can achieve a precise and reliable foundation for their models, facilitating more effective treatments and improved patient outcomes. After you finish 3D modeling, you can use the in-built online slicer of SelfCAD to slice your files and generate the G-code to send to your 3D printer. Learn how SelfCAD slicer works in the video below.


Enjoy powerful modeling, rendering, and 3D printing tools without the steep learning curve.

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