[Application of functionally generated path technique in computer-aided-design modeling of occlusal surface of full crown].
OBJECTIVE
To apply the functionally generated path (FGP) technique for modeling the occlusal surface of a computer-aided-design (CAD) posterior full crown to obtain anatomic morphology.


METHODS
A patient with defected left mandibular first molar was employed. After tooth preparation and impression making, the gypsum working cast and die were scanned with a digitized mechanical scanner and the surface data was acquired. The interocclusal records at intercuspal position (ICP) and FGP were made in the patient's mouth. These records were placed on the working cast and their surfaces were scanned. In the process of the computer-aided designing full crown, the cusps and fossae of the occlusal surfaces were accurately modified according to the digitized information of ICP and FGP interocclusal records.


RESULTS
A full crown was designed and the occlusal morphology of the restoration was adapted to dynamic occlusion as well as static occlusion.


CONCLUSIONS
The FGP technique was practical for the CAD of full crown and could avoid potential occlusal interferences with opposing teeth during function.
Zou
Bo
B
Department of Prosthodontics, Guanghua School of Stomatology, Sun Yat-sen University, Guangzhou 510055, China.
Lü
Pei-jun
PJ
Ye
Shao-you
SY
Wang
Yong
Y
D000328:Adult; D001732:Bite Force; D017076:Computer-Aided Design; D003442:Crowns; D003766:Dental Occlusion; D017267:Dental Prosthesis Design / Q000379:methods*; D006801:Humans; D008297:Male