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題 名 | A New Technique for Generating a Computer-Aided Design and Computer-Integrated Machining Crown: Case Report=一種運用電腦輔助設計與電腦整體製做之新技術來製做牙冠:病例報告 |
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作 者 | 張晏祥; 劉朋儒; | 書刊名 | 長庚醫學 |
卷 期 | 22:4 1999.12[民88.12] |
頁 次 | 頁633-638 |
分類號 | 416.964 |
關鍵詞 | 電腦輔助設計與電腦輔助製作; 電腦輔助設計與電腦整體製作; CEREC系統; Computer-aided design and computer-aided manufacture; CAD-CAM; Computer-aided design and computer-integrated machining; CAD-CIM; Ceramic reconstruction CEREC system; |
語 文 | 英文(English) |
中文摘要 | 在此提出一種運用電腦輔助設計與電腦整體製作牙冠的新技術(CEREC系統),其 步驟是在完成牙齒修形後,藉由所謂的「光學印模」方式,也就是由一個非常精密的取像鏡 頭將牙齒的電子影像轉移至電腦螢幕上,操作者可在螢幕上藉由電腦程式來設計出所需要的 牙冠,其後選擇適當的預製陶瓷塊做為研磨材料,微型之研磨機器會將選擇之陶瓷塊研磨成 所設計的牙冠,經過邊緣與外形的調整和確認後,為了增進牙冠的美觀可以施以外部染色技 街。支臺齒與牙冠在酸蝕後,以雙重聚合複合黏合劑予以黏合。一旦黏合完成,在調整咬合 並施以磨光後即告完成。 此項技術的優點在於減少製做傳統牙冠所需的鑄造過程與相對的技工費支出外,並可利 用最佳物理性質之材料達到擁有最大強度與美觀效果的全瓷牙冠。 |
英文摘要 | A new technique for producing a Computer-Aided Design and Computer- Integrated Machining Ceramic Reconstruction crown is presented. After completion of the tooth preparation, an "optical" impression of the tooth was made with a charged couple device camera, and the electronic image was transferred to a computer screen. The "proposed" crown was electronically designed on the screen by the operator, and a proper prefabricated ceramic block was selected and used as milling material. A miniature milling machine then fabricated the crown from the ceramic block. The marginal adaptation and the contour of the crown were verified, and an external shading technique was utilized to improve the esthetics. The prepared tooth and crown were acid-etched, and the crown was cemented with a dual-curing composite luting agent. Once bonded in place, the occlusion was adjusted and the crown polished and finished. The advantage of this technique is that it eliminates the traditional laboratory casting procedure and corresponding laboratory fee while utilizing materials with superior physical properties for maximum strength and esthetics. |
本系統中英文摘要資訊取自各篇刊載內容。