- 學位論文
結合光學追蹤技術之個人化數位咬合器建構與應用
The Development of Personal Virtual Articulator Based on Optical Tracking Technique
摘要
本研究提出一套結合光學追蹤技術與電腦斷層(CT)影像三維重建技術之個人化數位咬合器模擬系統。咬合器的發展超過上百年的歷史，咬合器可協助醫師找出理想的咬合狀態，但傳統咬合器無法提供即時的咬合狀態。隨著CAD/CAM技術成熟，牙科治療開始由數位軟體進行規劃，許多軟體也整合數位咬合器的功能，然而，每個人都有獨特性，這類的軟體以固定的咬合路徑進行模擬無法完整模擬病患的咬合狀態，使病患無法得到最佳的治療。 本研究以電腦斷層掃描與三維重建技術重建病患的三維模型，可準確的量測骨骼相關的幾何資訊，改善過去使用接觸式量測儀器(Facebow)產生的誤差，同時結合光學追蹤技術，追蹤病患下顎的咬合運動，用於數位咬合器的模擬，可協助醫師規劃出較準確且較符合病患的治療方式。
並列摘要
In this paper, we will build a personal virtual articulator simulation system based on optical tracking technique and CT(Computer Tomography) reconstruction technique. The traditional articulator has been developed for hundreds of years. It can help dentist to find an ideal occlusion, but it cannot provide the occlusion immediately. As CAD/CAM techniques became mature, many dental treatments start to use software with virtual articulators for treatment planning. However, most of the software only provide given trajectories. Since every person is unique, the given trajectories might not accurately represent patients’ occlusions. Therefore, dentists could not give an ideal plan of treatment based on the software. In this paper, we use CT scan and reconstruction technique to get the patient’s maxilla and mandible skull. We can get the occlusal information from these techniques with lower error compared to the traditional method done by the facebow. At the same time, we use optical tracking technique to record the mandible movement. This patient-specific trajectory can be used to simulate the occlusal movement for virtual articulator. Dentists can then give a more suitable and accurate plan of treatment based on these additional information.