【摘要】：目的： 研究制作二次掃描法全鋯修復體，并通過測量數據說明其相比手工烤瓷冠制作法制作的修復體以及標準數據庫法制作的修復體的形態(tài)學優(yōu)勢，為探索建立個性化牙齒數據庫提供方法。 方法： 選擇上頜左側第一磨牙標準全瓷冠預備體模型，模擬標準上頜左側第一磨牙形態(tài)利用二次掃描法，，手工烤瓷冠制作法和數據庫法三種方法分別制作左側上頜第一磨牙全冠，再應用錐體束三維螺旋CT測量三種方法制作的修復體的軸面外形凸度以及牙尖斜面斜度并通過spss13.0軟件比較其形態(tài)學差異。 結果： 利用二次掃描法模擬標準左側上頜第一磨牙形態(tài)制作的全鋯修復體與標準左側上頜第一磨牙相比其外形凸度以及牙尖斜面斜度均無統(tǒng)計學差異，而手工烤瓷冠制作法以及數據庫法兩種方法制作的修復體相比標準左側上頜第一磨牙，其外形凸度以及牙尖斜面斜度均存在統(tǒng)計學差異。 結論： 利用二次掃描法模擬標準左側上頜第一磨牙形態(tài)制作的全鋯修復體比手工烤瓷冠制作法以及數據庫法兩種方法制作的全冠修復體其外形凸度以及牙尖斜面斜度與標準左側上頜第一磨牙最接近即更有形態(tài)學優(yōu)勢。
[Abstract]:Objective: to study the advantages of secondary scanning total zirconium prosthesis (TZR) as compared with that made by handmade porcelain crowns and by standard database method. In order to explore the establishment of personalized dental database. Methods: the model of standard all-ceramic crowns of left maxillary first molar was selected, and the shape of standard left first molar was simulated by secondary scanning method. The left maxillary first molar crown was made by manual porcelain crown making method and database method respectively. Three dimensional spiral CT of cone bundle was used to measure the crown of the axial surface and the slope of the cusp of the prosthesis. The morphological differences were compared by spss13.0 software. Results: there was no significant difference in profile protruding and cusp slope between standard left maxillary first molar and standard left maxillary first molar. Compared with the standard left maxillary first molar, the crown made by hand and the restoration made by database method had significant difference in shape protruding and cusp slope. Conclusion: the total zirconium prosthesis with standard left maxillary first molar shape was simulated by secondary scanning method than that made by handmade porcelain crown and database method. The slope of the cusp is closer to the standard left maxillary first molar, that is, it is more morphologically superior to the standard left maxillary first molar.
【學位授予單位】：山西醫(yī)科大學
【學位級別】：碩士
【學位授予年份】：2014
【分類號】：R783.3

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