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The International Archives of the Photogrammetry, Remote Sensing and Spatial Information Sciences. Voi. XXXVII. Part B5. Beijing 2008 
- “Smiling” face 3D model matching with face 3D model 
with the reference object using iterative closest point 
algorithm for given face regions 
- Upper teeth arch 3D model with reference object 
matching with face 3D model with the reference 
object in a similar way 
- Eliminating 3D models with reference object from the 
scene resulting in multi-resolution face 3D model 
including face surface and high-resolution teeth 
arches 3D models 
Results of teeth arch 3D model positioning is shown in Figure 9. 
Figure 9. Patient face 3D model with high resolution teeth arch 
3D model 
For purposes of treatment results forecasting and documenting 
it is needed realistic presentation of high resolution teeth arch 
3D models. To provide this function the system includes a tool 
for photorealistic teeth arch 3D model texturing using high 
resolution colour images of teeth arch. 
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Figure 10. High-resolution texture mapping 
Texture mapping is performed according to corresponding 
points on teeth arch 3D models and colour image marked by 
operator. Figure 10 presents high resolution image of teeth with 
markers, 3D model with corresponding points and resulting 
textured teeth arch 3D model. 
4. OCCLUSION ANALYSIS 
Further steps require making sections of teeth in bucco-lingual 
direction. The approaches accepted in prosthetic dentistry 
practice for obtaining those sections are applied. To perform 
necessary section and measurement using teeth arch 3D model 
specialized software is developed. It supports the following 
functions: 
- 3D model visualization in different modes (solid, 
wireframe, points), 
- making given plane section of 3D model, 
- section contours visualization in forms of 2d or 3D 
curves, 
- Measuring given parameters in section plane. 
Figure 11 and Figure 12 present the user interface of the 
developed software in form of 3D view (Figure 11) and in form 
of 2D view (Figure 12). 
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Figure 12. Teeth arch section 2D view