Development of the CAD/CAM system for occlusal laminate veneer using the construction of occlusal curved surface

利用咬合曲面结构开发咬合层压板CAD/CAM系统

• 批准号: 11671929
• 负责人: NAKAMURA Takashi
• 金额: $ 2.18万
• 依托单位: Osaka University
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 1999
• 资助国家: 日本
• 起止时间: 1999 至 2001
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-11671929/
• 关键词: Laminate veneer; Occlusal curved surface; CAD; CAM; 歯列形態; 3次元分析; 咬合面ラミネートベニア

This study was done to prepare occlusal laminate veneer by CAD/CAM. We measured and analyzed the subjects of normal occlusion and malocclusion with using high speed measuring system for dental cast. As a result, we made it possible to evaluate the difference of the form in a fixed quantity with showing the dental arch form by polynomial expression as well as comparing numerical value. Furthermore, it is necessary to establish occlusal plane when we treat it with occlusal laminate veneer. Therefore, we use noncontact three-dimensional measuring system to study unification of three-dimensional data of face and dentition. As a result we succeed in unity in 0.3 mm error. By using this method, it became possible to analyze physical relationship of face and dentition in a fixed quantity and get a useful data of designing of laminate veneer. About materials A we analyzed the strength of metal-free crown by 3-D finite element analysis and got a basic data of strength analysis of laminate veneer

本研究采用CAD/CAM技术制备咬合层压板贴面。采用高速铸造牙模测量系统对正常牙合和错牙合进行了测量和分析。因此，我们可以通过多项式表达式显示牙弓形态并比较数值来评估固定数量的形式差异。此外，在使用咬合层压板贴面治疗时，有必要建立咬合平面。因此，我们采用非接触式三维测量系统来研究人脸和牙列三维数据的统一。结果，我们成功地将误差统一在0.3 mm以内。利用该方法可以定量地分析面与牙列的物理关系，为层压单板的设计提供了有用的数据。对A材料进行了无金属冠的三维有限元强度分析，得到了层压贴面强度分析的基本数据

项目成果

Kojima, T., Nakamura, T., et al.: "A preliminary report on a computer-assisted dental analysis system used for the prosthodontic treatment"J. Oral Rehabil.. (accepted).

小岛，T.，中村，T.，等人：“用于修复治疗的计算机辅助牙科分析系统的初步报告”J。

Nakamura, T., Imanishi, A., et al.: "Stress analysis of metal-free polymer crowns using the three-dimensional finite element method"Int.J.Prosthodont.. 14. 401-405 (2001)

Nakamura, T.、Imanishi, A. 等人：“使用三维有限元法对无金属聚合物牙冠进行应力分析”Int.J.Prosthodont.. 14. 401-405 (2001)

Nakamura, T., Imanishi, A., et al.: "Stress analysis of metal-free polymer crowns using the three-dimensional finite element method"Int. J. Prosthodont. 14. 401-405 (2001)

Nakamura, T.、Imanishi, A. 等人：“使用三维有限元法对无金属聚合物牙冠进行应力分析”Int。

Hirata, T., Nakamura, T., et al.: "Studies on polishing of Ti and Ag-Pd-Cu-Au alloy with five dental abrasives"J.Oral Rehabil.. 28. 773-777 (2001)

Hirata, T., Nakamura, T., et al.：“用五种牙科磨料抛光 Ti 和 Ag-Pd-Cu-Au 合金的研究”J. Oral Rehabil.. 28. 773-777 (2001)

Kojima T.,Sohnmra T.,Wakabayashi K.,Nagao M.,Nakamura T.,Takashima F.,Takahashi J.And Maruyama T.: "Development of a New High-Speed Measuring system to Analyze the Dental Cust Form"Dental Materials Journal. 18・4. 354-365 (1999)

Kojima T.、Sohnmra T.、Wakabayashi K.、Nagao M.、Nakamura T.、Takashima F.、Takahashi J. 和 Maruyama T.：“开发一种新的高速测量系统来分析牙科客户形态《牙科材料杂志》. 18・4. 354-365 (1999)