冠延长术保存前牙龈下残冠的美学修复效果观察  

Clinical aesthetic effectiveness of restoring the subgingival residual crowns of anterior teeth with crown lengthening surgery

作　　者：高红媛[1] 段义峰 陈晓峰[1] 钟先梅[2] GAO Hong-yuan;DUAN Yi-feng;CHEN Xiao-feng;ZHONG Xian-mei(Department of Prosthodontics, Taizhou Stomatological Hospital. Taizhou 225300, Jiangsu Province, China;Department of Periodontology, Taizhou Stomatological Hospital. Taizhou 225300, Jiangsu Province, China)

机构地区：[1]泰州市口腔医院修复科,江苏泰州225300 [2]泰州市口腔医院牙周病科,江苏泰州225300

出　　处：《上海口腔医学》2018年第6期649-651,共3页Shanghai Journal of Stomatology

摘　　要：目的:观察冠延长术结合桩核冠修复治疗前牙龈下残冠的临床效果。方法:选择前牙缺损患者25例(共28颗患牙),缺损断面最低点均在龈缘下3 mm以内,经完善根管治疗后行冠延长术;术后8周开始桩核冠修复,随访观察修复后1、6、12个月的牙根松动度、牙周组织情况、修复体边缘和稳定性。结果:随访1年,患者牙龈健康优于术前,术后修复成功率为89.28%。失败3颗,其中牙根松动1颗,牙龈退缩、冠边缘暴露2颗。结论:牙冠延长术对前牙龈下残冠保存修复效果满意,牙周组织健康、修复美观稳定,但需严格掌握适应证。PURPOSE:To evaluate the clinical effects of restoring the subgingival residual crowns of anterior teeth with periodontal and prosthodontics treatment.METHODS:Twenty-five patients with 28 subgingival residual crowns were treated by root canal therapy,crown lengthening surgery,and restored with post- core crown after 8 weeks.Changes in tooth mobility,gingival health were examined and clinical effect of crown restoration were evaluated at regular intervals of 1 month,6 months and 12 months after restoration respectively.RESULTS:One year after restoration,the gingival health was improved and the overall effective rate was 89.28%.Three teeth were failed,one was due to mild tooth loose,and the other two were due to exposure of crown margin.CONCLUSIONS:For subgingival residual crowns of anterior teeth,crown lengthening surgery can conserve the biological width,and produce enough height of ferrule.Restoration can obtain satisfactory effects,but the indication must be selected properly.

关 键 词：冠延长术 箍结构 桩核冠修复 前牙龈下残冠 

分 类 号：R783.3[医药卫生—口腔医学]