植牙手術過程因為每位醫師的臨床經驗與判斷不同會造成植牙位置的偏差，因此衍生出手術導引板，協助定義手術中鑽孔之位置及角度，可以縮短手術時間，較小的傷口亦可縮短患者傷口癒合時間。目前的植牙手術僅利用軟體進行術前規劃與模擬，並無實際下顎骨模型供術前演練及導引板驗證。因此，本研究擬應用快速成型技術建立下顎骨實體模型，協助植牙術前模擬及導引板之開發。
本研究將電腦斷層掃描的資料，透過醫學影像軟體，建立具有血管神經及定位支柱之下顎骨CAD模型，並以快速成型技術製作出實體模型，可提供醫生手術前的規劃與導引板手術模擬，亦可提供導引板驗證之用。此外，下顎骨CAD模型亦可用於協助導引板之開發，由軟體設計好的導引板，透過快速成型技術製作後，再使用矯正樹脂翻製而成。完成的導引板與下顎骨模型一起鑽孔模擬植牙手術，並使用斷層掃描拍攝鑽製好的下顎骨，利用定位珠與鑽孔之相對位置與原植體設計進行比對，所得誤差值皆在合理範圍之內，主要誤差來源為鑽孔時的操作誤差。本研究所建立之下顎骨模型及其流程，成功應用於植牙術前模擬及導引板之開發，將有助於提高手術成功率及安全性，並可推廣於其他類似之應用。

The deviation of the implant location during implant surgery results from the different clinical experiences and judgements of doctors. Thus surgical guide was created to define the location and angles of drilling holes. With the surgical guide, the surgical wounds are minimized, and the operation time and wound healing time are shortened. Current implant surgery only utilizes the software to proceed pre-operation planning and simulation. Hence, this research intended to apply the rapid protyping (RP) technique to build real mandible models for implant surgery simulation and surgical guide development.
In this research, computed tomography (CT) data of madible were coverted to a CAD model with vessels, nerve, and orientation pillars by a medical imaging processing software. RP technique was then utilized to obtain a real 3D model for pre-operation planning, imitation of surcial guide surgery, and surgical guide verification. Besides, the CAD model was beneficial to surgical guide development. The designed surgical guide was produced by RP technique and then converted to a ortho-resin model. The finished surgical guide were stacked with RP mandible model for simulating drilling in the surgery. The drilled RP mandible models were CT-scanned and compared with the design. The errors were within acceptabe ranges and the main cause of the erros was from the drilling operation. The RP mandible model made in this research and its procedures have been successfully ulitized in pre-operation simulation and the development of surgical guide to increase surgery successful rate and safety. This appraoch is also applicable to other similar applications.

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