上海口腔医学

上海口腔医学 ›› 2018, Vol. 27 ›› Issue (6): 649-651.doi: 10.19439/j.sjos.2018.06.018

• 论著 • 上一篇    下一篇

冠延长术保存前牙龈下残冠的美学修复效果观察

高红媛1, 段义峰1, 陈晓峰1, 钟先梅2   

  1. 1.泰州市口腔医院 修复科,2.牙周病科,江苏 泰州 225300
  • 收稿日期:2018-09-03 出版日期:2018-12-25 发布日期:2019-01-11
  • 通讯作者: 段义峰,E-mail:duan-228726@163.com
  • 作者简介:高红媛（1983-）,女,在读硕士研究生,主治医师,E-mail:ghy-7825@163.com

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

GAO Hong-yuan1, DUAN Yi-feng1, CHEN Xiao-feng1, ZHONG Xian-mei2   

  1. 1.Department of Prosthodontics; 2.Department of Periodontology, Taizhou Stomatological Hospital. Taizhou 225300, Jiangsu Province, China
  • Received:2018-09-03 Online:2018-12-25 Published:2019-01-11

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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。

关键词: 冠延长术, 箍结构, 桩核冠修复, 前牙龈下残冠

Abstract: 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.

Key words: Crown lengthening surgery, Ferrule, Post-core crown, Subgingival residual crowns of anterior teeth

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