Viewbox Tutorial How to measure tooth movement
Transcript of Viewbox Tutorial How to measure tooth movement
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Viewbox Tutorial How to measure tooth movement
Requires a ‘before’ and ‘after’ virtual model
www.dhal.com
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Hide the final model, then select the initial model
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Right-click on the Paintbrush tool and select Smart Brush and 2%
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Click on the Paintbrush tool to activate it, then right-click on the tooth to select it
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Click on the Paintbrush tool to de-activate it
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Create a new object from the selection
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Drag the new object above Final and lock it with Initial
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Drag the new object above Final and lock it with Initial
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Right-click the Object Widget and select Object to Origin
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Activate the Object Widget
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Use the widget to rotate the tooth (and locked model) so that it is aligned to the axes.
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Use the preset views for help
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Inferior view
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Right side view
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Front view
Make sure only rotations are applied, so object remains
centered at origin. Else, repeat: ‘Object to Origin’
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Un-hide ‘Final’ and select it
Then use the widget to move it close to the ‘Initial’
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Activate the Area Select tool
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Right-drag to draw an outline, then right-click inside the outline
to select that part of the mesh
Finally, de-activate the tool
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1. Set ‘Initial’ as the Reference Object, 2. Select ‘Final’
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3. Click Mesh Registration
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Click Align repeatedly, to superimpose the two models. Start with ‘Approximate’ and 1%, then, once the fit is good, switch to ‘Exact’ and 100%. ‘Estimated overlap’ should be close to 100% and ‘Matching’ should be ‘Point to Plane’. Make sure ‘Selected area of source mesh’ is checked.
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After alignment
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1. Unlock ‘Mesh 3’ from ‘Initial’, 2. Set ‘Final’ as the Reference Object, 3. Select ‘Mesh 3’
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From the Object menu, select Freeze Transform. This initializes the position and rotation values of the tooth mesh to zero.
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Click Align repeatedly, to superimpose the tooth mesh to the ‘Final’ model. Use the same strategy as before.
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After alignment (‘Initial’ has been hidden)
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From the Object menu, select Position / Rotation / Scale…
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The values show the change from the initial to the final position. The results can be copied to the Clipboard using the toolbar button.