数字化补件在单侧颌面部骨缺损修复中的精确度研究

目的 通过模拟临床中个性化钛补件修复不对称骨缺损的制作过程,比较个性化钛补件、树脂补件与健侧骨组织间的精确度.方法 选取新鲜猪头模拟单侧颧弓缺损,利用健侧数据修复制作缺损部位的树脂补件及个性化钛补件,通过测量,比较树脂补件、个性化钛补件及健侧颧弓标本之间的误差.结果 三组测量数据经统计学分析后,结果无明显差异.树脂补件...

Analysis on the accuracy of the digital repair patch in repairing unilateral maxillofacial bone defect

Objective To compare the accuracy of the individualized titanium repair patch and the resin patch in bonding on contralateral bone tissues through simulating the clinical process of the individualized repair patch in repairing asymmetric bone defects.Methods A unilateral zygomatic arch defect in the face of fresh experimental pigs was created.Resin repair patch and individualized titanium repair were made using data of contralateral bone tissues.The difference between contralateral zygomatic arch specimen and the resin repair patch or individualized titanium repair patch was compared based on measured parameters.Results No significant differences in measured parameters were detected among three groups.The difference between resin repair patch and contralateral zygomatic arch specimen was 1.16±0.39 mm,which was 0.00±0.26 mm between resin repair patch and individualized titanium repair patch.Conclusion Individualized titanium repair patch is sufficient to simulate the morphology of the zygomatic arch,with a relatively acceptable accuracy.