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  • 學位論文

牙科贋復元件間隙之影像量測系統開發

The Development of Image Measurement System for the Detect of Dental Prosthesis Elements’ Gap

指導教授 : 張信良
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摘要


目前常用的間隙量測大多是以接觸的方式為之,國內外對於假牙安裝後間隙量測儀器則是尚在開發階段。目前在牙科診間多以針頭在齒面滑動以觀察間隙是否太大,此一方式不夠精確,且易受施力大小所影響。由於牙齒外形為複雜之曲面且口腔空間狹小,現有的影像量測儀無法適當地測量出贋復元件與牙齒的間隙,量測所耗費的時間也相對多。 有鑑於此,本研究將利用影像處理開發應用於牙科贋復元件的量測技術,包括影像濾波、影像形態學、邊緣偵測,針對假牙的外形輪廓進行特徵的擷取與計算,以量測出假牙間隙,因此本研究提供可靠的間隙量測方式,解決以往無法量測牙科贋復元件製造精度之課題,成果亦可應用於其他型式的複雜外型的檢測。

關鍵字

三維列印 假牙 影像處理 量測

並列摘要


The possible ways to measure the gap of dental prosthesis element are done by contact of probe or image processing. However, the gap measuring instrument to detect the denture installation is still in development. In order to judge the gap of denture is too large or not, dentists use a needle to scrape on the surface of denture. This way is easily affected by the applied force and causes misjudgment. Because the commercial image measurement instrument cannot properly measure the gap of denture in the narrow mouth. Therefore, this study aims to develop a device to detect the gap of dental, such the device is not found currently in industry. Based on the requirement, this study applies image processing to develop a system for gap measurement of dental prosthesis element. The system functions use image filtering, image morphology, and edge detection to capture and calculate the contour for the gap measurement of dental. The developed measurement system could combine with the oral camera to improve its application. The results in this study are efficient to measure the gap of dental prosthesis elements.

並列關鍵字

3D printing Tooth Image processing Measurement.

參考文獻


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