RESEARCH ON RECONSTRUCTION ALGORITHM OF COMPLETE TOOTH MODEL

In a computerized dental prosthetic system, a complete digital 3D dental model relates to subsequent dental implants, implants, orthodontics, and biomechanical analysis.Therefore, this paper proposes a set of system flow and algorithm for each stage to generate a high-accuracy, complete-data tooth model.This article is mainly from the CT and optical scanning of these two different data acquisition tooth model for follow-up operations, including: reconstruction of CT data, the separation of the gums and crowns of the optical scanning tooth model, data registration, co-segmentation , model integration and so on. The 3D digital tooth model required for the computational aided design is finally generated. Theory and experiment show that the process and algorithm of this paper can achieve a good reconstruction of the dental model, and it is fast and easy to operate.