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Published on: August 24, 2018
[A computer aided design approach of all-ceramics abutment for maxilla central incisor]
Yu-chun Sun1, Yi-jiao Zhao, Yong Wang
1Department of Implant Dentistry, Peking University School and Hospital of Stomatology, Beijing 100081, China.
Objective:
To establish the computer aided design (CAD) software platform of individualized abutment for the maxilla central incisor.
Methods:
Three-dimentional data of the incisor was collected by scanning and geometric transformation. Data mainly included the occlusal part of the healing abutment, the location carinae of the bedpiece, the occlusal 1/3 part of the artificial gingiva's inner surface, and so on. The all-ceramic crown designed in advanced was "virtual cutback" to get the original data of the abutment's supragingival part. The abutment's in-gum part was designed to simulate the individual natural tooth root. The functions such as "data offset", "bi-rail sweep surface" and "loft surface" were used in the process of CAD.
Results:
The CAD route of the individualized all-ceramic abutment was set up. The functions and application methods were decided and the complete CAD process was realized.
Conclusions:
The software platform was basically set up according to the requests of the dental clinic.
