下颌磨牙重度根分叉病变综合治疗保存的临床研究  

Clinical Rsearch on Mandibular Molars Severe Furcation Lesions Treatment

作　　者：杨令云[1] 徐芳[1] 李慧良[1] 

机构地区：[1]郑州市第一人民医院口腔科,河南郑州450003

出　　处：《口腔医学研究》2013年第7期658-660,共3页Journal of Oral Science Research

摘　　要：目的:探讨下颌磨牙Ⅲ、Ⅳ度根分叉病变行分根术及部分配合冠延长术、桩核修复后烤瓷联冠修复保存下颌磨牙的临床效果。方法:58例60颗下颌磨牙,其中57颗下颌第一磨牙,3颗下颌第二磨牙,均为Ⅲ、Ⅳ度根分叉病变,22例22颗为残冠合并有牙体缺损至龈下,除行分根术外,加冠延长术,术后残根者先用桩核修复后做烤瓷联冠修复,追踪6～24月观察修复疗效。结果:60颗患牙成功56颗,咀嚼功能良好,无自觉症状,修复6个月后X线可见根间骨质轻度增生,边缘硬骨板形成,有效率达93.3℅。1例纵行根折拔除,2例烤瓷冠修复12个月后因反复牙周脓肿和骨吸收,松动而拔除,1例10个月后慢性尖周炎长期牙龈瘘管不愈拔除,失败率6.7%。结论:Ⅲ、Ⅳ度根分叉病变的下颌磨牙经分根术及部分加冠延长术后结合烤瓷联冠修复能恢复牙齿的美观及功能。Objective： To investigate the clinical effect of the crown lengthening surgery,post and core to repair severe mandibular molars,with Ⅲ and Ⅳ degree of periodontal furcation.Methods： 58 patients（60 mandibular molars） with Ⅲ and Ⅳ degree of root bifurcation lesions,57 mandibular first molar,3 mandibular second molar.22 cases were residual crown associated with dental defects to subgingival addition to the line split-root plus crown lengthening surgery,postoperative residual roots,first post and core were done porcelain Lianguan repair,repair efficacy follow-up observation 6-24 months of observation.Results： 56 teeth were succeed,chewing function,no symptoms,the x-ray visible root bone mild hyperplasia after 6 months,the edge of the bony plates form.Longitudinal root fracture disconnect,two cases of porcelain crowns repair after 12 months were removed due to of repeated periodontal abscess and bone resorption,loosening,Example 10 months after chronic periapical long-term gum fistula unhealed unplug efficient 93.3%.Conclusion： Ⅲ,Ⅳ degree furcation mandibular molars by the sub-root technique and part plus crown lengthening surgery combined with porcelain-linked crown can restore the appearance of the teeth and function.

关 键 词：根分叉病变 分根术 冠延长术 烤瓷联冠修复 

分 类 号：R783[医药卫生—口腔医学]