[The inlay computer aided design based on reverse engineering technology].
OBJECTIVE
This study was to explore a CAD method for constructing occlusal and proximal surfaces of inlays using reverse engineering (RE) software and to develop a CAD software for the inlay fabrication.


METHODS
The dentition model of a volunteer with individual normal occlusion was scanned with a 3D mechanical scanner. The scanned objects were prepared teeth with G. V. Black class I, class II and class VI (MOD) cavities, neighbor teeth, intercuspal position (ICP) record, and functional bite record (or functional generate path, FGP). Inlays were constructed based on RE technology using the database of Chinese normal teeth.


RESULTS
The technique guideline of inlay CAD was developed based on RE softwares. Inlays designed with CAD technique showed smooth and continuous contours. The occlusal and proximal contacts of inlay met physiologic demands.


CONCLUSIONS
It is a feasible method to develop a CAD software for inlay fabrication based on RE software.
Liu
Ming-li
ML
Research Center of Engineering and Technology for Dental Computing, Ministry of Health, Peking University School of Stomatology, Beijing 100081, China.
Lü
Pei-jun
PJ
Wang
Yong
Y
Han
Jing-yun
JY
Zhao
Jian-jiang
JJ
D000328:Adult; D017076:Computer-Aided Design; D003766:Dental Occlusion; D017267:Dental Prosthesis Design / Q000379:methods*; D006801:Humans; D007284:Inlays; D008297:Male; D003765:Models, Dental