Tsuji Mitsuhiro, Noguchi Nobuhiro, Ihara Koichiro, Yamashita Yoshio, Shikimori Michio, Goto Masaaki
Department of Oral and Maxillofacial Surgery, Saga Medical School, Saga 849-0937, Japan.
J Prosthodont. 2004 Sep;13(3):179-83. doi: 10.1111/j.1532-849X.2004.04029.x.
Maxillofacial prostheses are usually fabricated on the basis of impressions made with dental-impression material. The extent to which the prosthesis reproduces normal facial morphology depends on the clinical judgment of the individual fabricating the prosthesis. This paper describes a computer-aided design and manufacturing (CAD/CAM) system for the fabrication of maxillofacial prostheses. This system will provide a more consistently accurate reproduction of facial morphology.
Facial measurements were taken using a non-contact three-dimensional laser morphological measurement system. The measurements were sent to a computer numerical controlled (CNC) milling machine to generate a cast of the patient's face for the fabrication of prosthesis.
Facial contours were measured using a laser. This method minimizes patient discomfort and avoids soft tissue distortion by impression material. Moreover, the digital data obtained is easy to store and transmit, and mirror-images can be readily generated by computer processing.
This method offers an objective, quantified approach for fabricating maxillofacial prostheses.
颌面修复体通常基于用牙科印模材料制取的印模来制作。修复体再现正常面部形态的程度取决于制作修复体的个体的临床判断。本文描述了一种用于制作颌面修复体的计算机辅助设计与制造（CAD/CAM）系统。该系统将能更一致地精确再现面部形态。
使用非接触式三维激光形态测量系统进行面部测量。测量数据被发送到计算机数控（CNC）铣床，以生成患者面部的模型用于制作修复体。
使用激光对面部轮廓进行测量。这种方法可将患者不适降至最低，并避免印模材料导致的软组织变形。此外，所获得的数字数据易于存储和传输，并且通过计算机处理可以轻松生成镜像。
这种方法为制作颌面修复体提供了一种客观、量化的途径。
