利用二次扫描法制作全锆冠的效果评价

发布时间：2018-10-17 13:02

【摘要】：目的：研究制作二次扫描法全锆修复体，并通过测量数据说明其相比手工烤瓷冠制作法制作的修复体以及标准数据库法制作的修复体的形态学优势，为探索建立个性化牙齿数据库提供方法。方法：选择上颌左侧第一磨牙标准全瓷冠预备体模型，模拟标准上颌左侧第一磨牙形态利用二次扫描法，，手工烤瓷冠制作法和数据库法三种方法分别制作左侧上颌第一磨牙全冠，再应用锥体束三维螺旋CT测量三种方法制作的修复体的轴面外形凸度以及牙尖斜面斜度并通过spss13.0软件比较其形态学差异。结果：利用二次扫描法模拟标准左侧上颌第一磨牙形态制作的全锆修复体与标准左侧上颌第一磨牙相比其外形凸度以及牙尖斜面斜度均无统计学差异，而手工烤瓷冠制作法以及数据库法两种方法制作的修复体相比标准左侧上颌第一磨牙，其外形凸度以及牙尖斜面斜度均存在统计学差异。结论：利用二次扫描法模拟标准左侧上颌第一磨牙形态制作的全锆修复体比手工烤瓷冠制作法以及数据库法两种方法制作的全冠修复体其外形凸度以及牙尖斜面斜度与标准左侧上颌第一磨牙最接近即更有形态学优势。
[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.
【学位授予单位】：山西医科大学
【学位级别】：硕士
【学位授予年份】：2014
【分类号】：R783.3

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