超声骨刀在上颌磨牙分根术及半切术中的应用  

Application of Piezosurgery Device in Root Separation and Tooth Hemisection for Maxilla Molars

作　　者：张恒[1] 杨旭[1] 刘学[1] 周婷婷[1] 刘荫[1] 郭照中[1] 邓燕[1] 

机构地区：[1]广东医学院附属深圳南山医院口腔科,广东深圳518052

出　　处：《广东牙病防治》2011年第11期592-596,共5页Journal of Dental Prevention and Treatment

摘　　要：目的探讨上颌磨牙使用超声骨刀行分根术及半切术后行桩核冠修复的临床疗效。方法临床选择符合条件的18颗存在严重牙体缺损的上颌磨牙,完善根管治疗后应用超声骨刀行分根术或半切术,必要时做牙冠延长术,根分叉有炎症先行牙周治疗,而后行桩核联冠或腭侧单冠修复。随访2年。结果 1例患者于1年后失访,其余17颗患牙均能保持良好的咀嚼功能,患者无明显不适,X线片示牙槽骨无明显吸收。结论应用超声骨刀行分根术及半切术联合桩冠修复对治疗严重缺损上颌磨牙有良好的临床效果。Objective To evaluate clinical effects of application of piezosurgery device in root separation and tooth hemisection combined with dowel crown.Methods Totally 18 maxilla molars agreed with the criteria we set were selected.Root separation,tooth hemisection,crown lengthening and furcation involvement therapy when needed were performed with piezosurgery device after consummate root canal therapy.Then the post and core were restored and combined crowns were made.All the cases were followed up for 2 year.Results All of the teeth functioned well except that one patient was lost.X-ray shows no obvious alveolar bone loss.Conclusion A satisfactory treatment effects could beachieved by using the piezosurgery device in root separation and tooth hemisection combined with dowel crown to save maxilla molars with severe defect.

关 键 词：超声骨刀 分根术 半切术 上颌磨牙 根分叉病变 

分 类 号：R783.2[医药卫生—口腔医学]