牙科陶瓷應用於口腔技術已有兩百年的歷史，在全瓷冠的製作技術與成份方面也日益進步。以玻璃陶瓷為主要成份的牙冠，在商業產品中佔有重要的地位，原因在於玻璃陶瓷可透過控制玻璃的熱處理而得到不同結晶程度和結晶相的多晶材料，也可以改變玻璃的成份來改變玻璃陶瓷的性質。
鈣雲母是一種片狀結晶，將其加入玻璃中通常能使玻璃具有良好的熔融穩定性與可切削性。因此，本實驗將鈣雲母添加至Wu et al.所研發之成份系統的玻璃內，期能夠製作出具有可切削性的新全瓷冠系統。
製作出的新全瓷冠系統，進行熱差分析、XRD結晶相分析、SEM微結構分析與機械性質分析。實驗結果顯示：本系統之玻璃在882℃可生成鈣雲母與磷灰石結晶相，但是鈣雲母的結晶情況較為明顯；燒結溫度越高，鈣雲母與磷灰石結晶數量越多；添加鈣雲母比例達到70%時，玻璃很容易在製作過程碎裂，無法形成良好玻璃試片。在機械性質方面，添加鈣雲母於玻璃系統中，會使結晶過後的玻璃陶瓷硬度增加。以切削速度與切削邊緣完整度綜合評估試片的可切削性，顯示經過950℃熱處理之50G50C試片，有最佳的切削性質。本實驗亦將研發的試片與商業產品IPS e.max CAD和cercon base 12相比較，切削性略優於IPS e.max CAD。

Dental ceramic applied to oral technology has been two hundred years of history. All-ceramic crowns in the production technology and components also increasingly progress. A glass-ceramic crown as the main ingredients in commercial products occupy an important position. The reason is that glass-ceramic glass can be controlled through the crystallization of the extent of the production of polycrystalline. Also can change the composition and the elements required of glass by the nature of glass-ceramic.
Calcium-mica is known as one of fluorophlogopite type mica. The feature of the calcium-mica are the great glass stability of the melt and machinability. The experimental use of calcium mica and glass system which by Wu et al. research and development components for the proportion of mixed glass-ceramic. Expect to be able to produce a machinability of all-ceramic crowns.
Experimental steps include differential thermal analysis, XRD crystalline phase analysis, SEM analysis of micro-structure and mechanical properties. The results are calcium-mica and apatite generated at 882℃ at the same time, but the crystallization of calcium-mica is more obvious. Sintering temperature is higher, calcium-mica and apatite crystal are higher. Added calcium-mica ratio reached 70%, glass-ceramic will be natural fragmentation in the air.The mechanical tests include micro-hardness test and machinability test. In micro-hardness experimental results, added calcium-mica in glass, will increase the glass-ceramic hardness after sintering. The machinability test assessment using cutting speed and cutting edge integrity to comprehensive assess. All of the specimens compared with commercial dental materials IPS e.max CAD and cercon base 12. The best machinability specimen is 50G50C of 950℃ for the heat treatment.

目錄

封面內頁
簽名頁
授權書................................................................................................... iii
中文摘要............................................................................................... iv
英文摘要................................................................................................ v
誌謝...................................................................................................... vii
目錄..................................................................................................... viii
圖目錄.................................................................................................... x
表目錄................................................................................................. xiv

第一章 緒論......................................................................................... 1
1.1 前言.................................................................................. 1
1.2 牙科陶瓷材料的沿革...................................................... 1
1.3 生醫牙科材料所應具備的條件...................................... 2
1.4 牙科全瓷冠製作技術分類.............................................. 3
1.5 研究動機與目的.............................................................. 6
第二章 理論基礎與前人研究.............................................................. 9
2.1 玻璃陶瓷基本介紹.......................................................... 9
2.2 熱分析............................................................................ 11
2.3 熱差分析........................................................................ 13
2.3.1 影響熱差分析的因素……….............................. 16
2.4 前人研究........................................................................ 17
第三章 理論及文獻回顧.................................................................... 19
3.1 實驗藥品與儀器設備.................................................... 19
3.1.1 化學藥品.............................................................. 19
3.1.2 儀器設備.............................................................. 20
3.2 實驗流程........................................................................ 21
3.3 試片製作........................................................................ 22
3.3.1 玻璃熔製.............................................................. 22
3.3.2 商用牙科陶瓷選用.............................................. 23
3.3.3 玻璃的熱處理...................................................... 23
3.4 試片分析......................................................................... 24
3.4.1 熱差分析.............................................................. 24
3.4.2 X光繞射分析........................................................ 24
3.4.3 微結構觀察.......................................................... 24
3.4.4 微硬度試驗.......................................................... 25
3.4.5 可切削性試驗...................................................... 25
第四章 結果與討論............................................................................ 30
4.1 玻璃陶瓷的研製............................................................ 30
4.1.1 玻璃的晶體成長.................................................. 30
4.2 機械性質分析................................................................ 44
4.2.1 微硬度測試.......................................................... 44
4.2.2 可切削性測試...................................................... 48
4.2.3 切削溝槽邊緣觀察.............................................. 59
第五章 結論........................................................................................ 74
參考文獻.............................................................................................. 75

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