Improvement of CAD to produce crown by considering occlusion.
Improvement of the CAD process to design the shape of crown restorations of a 6 die was carried out by including the bite data of the antagonistic tooth in addition to the data measured in the previous paper. Initially, the position adjustment of the crown data with the bite data in the centric occlusion was attempted. After fixation of the crown data to a suitable position, modulation of the occlusal surface by the functionally generated path (FGP) data was carried out. To connect between the end of the crown data and the margin, a parabolic function was used instead of the B-Spline function used in the previous paper. As a result, the data points were connected more smoothly. Thus, CAD data which were composed of the die data, the crown data, and the connecting data were accomplished. They will be used as the basic data to CAM.
Sohmura
T
T
Department of Dental Technology, Osaka University Faculty of Dentistry, Japan.
Takahashi
J
J
D017076:Computer-Aided Design; D003442:Crowns; D003768:Dental Occlusion, Centric; D017267:Dental Prosthesis Design; D006801:Humans; D003765:Models, Dental; D008963:Molar