Construction of 3-D standard external nasal morphological database for nasal prostheses
- VernacularTitle:鼻缺损修复CAD/CAM系统的开发——汉族人三维标准外鼻形态数据库的建立
- Author:
Xiaofang LIU
;
Yimin ZHAO
;
Guofeng WU
;
Yi WANG
;
Le QU
- Publication Type:Journal Article
- Keywords:
CAD/CAM;
Laser scan;
Morphological databank
- From:
Journal of Practical Stomatology
2000;0(06):-
- CountryChina
- Language:Chinese
-
Abstract:
Objective:To Construct 3-D standard external nasal morphological database for nasal prostheses.Methods:12 plaster models of 6 types of external nose were prepared and scanned by a lasser scanner.The data documents were primarily saved as .asc format. The digital noses were partitioned to six areas by the nasal anatomical features: Nasal bridge area,nasal tip and collumella area,left and right dorsal areas,left and right ala nostril areas, the surface model of each area was constructed and connected to a group. With adding the background color, the surface model of external nose was visualized from any observing angles; then the nasal length and width were measured and the original data were replaced by HAN standard data.12 digital nose models with the same size were obtained and the documents were saved by each type with both .asc format and .igs format.Results:Point-cloud data and surface model data of 6 types of standard external digital noses were obtained.Conclusion:The nasal morphological database may be used as the foundation for CAD/CAM technique preparation of nasal prostheses
