Research On3D Reconstruction Of Artificial Teeth Coping Crown And Software Development Based On Reverse Engineering

In tranditional,The main method of making artificial teeth coping crown in domestic is by hand,The working procedure is redundant,The making period is long,The consumption of manpower is large, And it can not be satisfied for just-for-once in treatment.There have some kinds of commercialized Artificial Teeth denture repair CAD/CAM systems,These kinds of systems can made Artificial Teeth simplely,short period, fine appearance,the doctor can finish the whole process of treatment next to the patient,it can be satisfied for just-for-once in treatment.This article is aiming to develop CAD software prototype for dental design of aritficial teeth coping crown, it studies the application of reverse engineering technology, studies the method of single artificial Teeth Coping Crown construct, studies the method of artificial Teeth Coping Crown bridge construct, studies the method of full crown construct and the developpment of the reverse engineering software surfacer10.6.On the thery of reverse engineering and the measurement, According to the feature of the prepared teeth, Taking of the advantage of three-dimension measurement equipment Obtin the surface data of the prepared teeth, the base platform is the reverse engineering software surfacer10.6, the method of constructing preparation line through mutual operation or the Curvature calculation, the single Artificial Teeth Coping Crown is constructed by the means of fit free form surface,using the methods of loft curves and Equidistant offset to create the outer crown of the single Artificial Teeth Coping Crown.The coping crown of the missing teeth is obtained by refering the similar prepared teeth, constructing the constraints to finish the registration of coping crown of the missing teeth, the constraints are below:The buccal surface line, The lingual surface line, The top of prepared teeth line and the feature of the adjacent tooth and so on, At last, lofting the curves which is constructed by mutual to obtain the bridge retainers and finish the coping crown of bridge.On these basis, the article is studies the method of developping the software of Surfacer10.6in depth, Including the application interface based on the Scoll embedded development functions, Customized menu and dialog, etc.completed the construct of the CAD software prototype for dental design of aritficial teeth coping crown, the system can construct the single aritficial teeth coping crown and the aritficial teeth coping crown bridge.