Computer aided design and computer aided manufacture of template for crown lengthening

Abstract

Abstract: PURPOSE: To introduce a method applied in computer aided design and computer aided manufacture (CAD-CAM) of template for crown lengthening. METHODS: Point cloud data of dental stone model of the patient in the plan of crown lengthening surgery was obtained by laser scanning. The following processes were carried out, constructing 3-D curve of the gingiva, drawing template outline on the triangle mesh model, shelling it for 3-D model of template, and transferring the data to rapid prototyping equipment for manufacture. RESULTS: 3-D model of the template was preliminarily accomplished. The resin template was manufactured with rapid prototyping equipment. The fitness between resin template and plaster model was good. CONCLUSIONS: This method, as an integrated procedure including data acquisition, 3-D computer modeling and fabrication by rapid prototyping, is feasible to implement CAD-CAM of template for crown lengthening.

Key words: Computer-aided design, Rapid prototyping, Crown lengthening surgery, Template

CLC Number:

R783.4

ZHAO Yan-bo, WU Lin, TANG Xiao-lin, GUO Chen. Computer aided design and computer aided manufacture of template for crown lengthening[J]. Shanghai Journal of Stomatology, 2013, 22(4): 443-447.

References

[1] 顾晓宇. 数字化口腔颌面缺损赝复技术[J]. 中国实用口腔科杂志, 2012, 5(5): 272-276.
[2] 于洪波, 张诗雷, 王旭东, 等. 计算机辅助导航技术在口腔颌面外科的应用—104例病例分析[J]. 上海口腔医学, 2012, 21(4): 416-421.
[3] 李志刚, 郝智莉, 冷卓, 等. 计算机辅助设计和制造(CAD/CAM)的种植手术导板的应用[J]. 现代口腔医学杂志, 2012, 26(4): 237-241.
[4] 吴琳, 吕培军, 王勇, 等. 可摘局部义齿支架铸型的计算机辅助设计与制作[J]. 中华口腔医学杂志, 2006, 41(7): 432-435.
[5] 孟焕新. 牙周病学[M]. 北京: 人民卫生出版, 2008: 273.
[6] Chu SJ, Tan JH, Stappert CF, et al. Gingival zenith positions and levels of the maxillary anterior dentition[J]. J Esthet Restor Dent, 2009, 21(2): 113-120.
[7] 巢永烈. 口腔修复学[M]. 第6版.北京: 人民卫生出版社, 2011: 181.
[8] Walker M, Hansen P. Template for surgical crown lengthening: fabrication technique[J]. J Prosthodont, 1998, 7(4): 265-267.
[9] Scutella F, Landi L, Stellino G, et al. Suigical template for crown lengthening: a clinic report[J]. J Prosthet Dent, 1999, 82(3): 253-256.
[10] 谢光远, 陈吉华. 人牙周生物学宽度测量的初步报告[J]. 中华口腔医学杂志, 2007, 42(11): 690-692.
[11] 张丽文. 与冠修复相关的牙周生物学宽度研究进展[J]. 临床口腔医学杂志, 2009, 25(10): 638-639.
[12] Charruel S, Perez C, Foti B, et al. Gingival contour assessment: clinical parameters useful for esthetic diagnosis and treatment[J]. J Periodontol, 2008, 79(5): 795-801.
[13] 曹采方. 临床牙周病学[M]. 北京: 北京大学医学出版社, 2006: 351.
[14] Chiche GJ, Pinault A著, 刘荣森, 李亚男译.前牙固定修复美学[M]. 北京: 人民军医出版社, 2010: 31-32.