口腔医学研究 ›› 2022, Vol. 38 ›› Issue (11): 1037-1041.DOI: 10.13701/j.cnki.kqyxyj.2022.11.008

• 口腔种植学研究 • 上一篇    下一篇

牙根留置技术在前牙区种植修复的临床效果研究

杜瑞钿, 刘森庆*, 何娟, 邱耀聪   

  1. 深圳市龙岗区耳鼻咽喉医院口腔科,深圳市龙岗区口腔医学研究所 广东 深圳 518172
  • 收稿日期:2022-04-06 出版日期:2022-11-25 发布日期:2022-11-22
  • 通讯作者: *刘森庆,E-mail:liusenqing@163.com
  • 作者简介:杜瑞钿(1982~ ),女,广东潮州人,硕士,副主任医师,研究方向:口腔美学修复的基础和临床研究。

Clinical Study on Outcomes of Root Submergence Technique for Implant-supported Restorations in Anterior Region.

DU Ruitian, LIU Senqing*, HE Juan, QIU Yaocong   

  1. Department of Stomatology, Shenzhen Longgang ENT Hospital, Shenzhen Longgang Institute of Stomatology, Shenzhen 518172, China
  • Received:2022-04-06 Online:2022-11-25 Published:2022-11-22

摘要: 目的: 评价牙根留置技术(root submergence technique, RST)应用于前牙区种植体支持式固定桥桥体位置的临床效果,并探讨其技术要点。方法: 选择上颌前牙区拟行种植体支持式固定桥修复的患者,桥体位点采用牙根留置技术,延期以种植体支持的树脂临时固定桥成形牙龈形态,3个月后行最终修复,最终修复后1年复诊。最终修复当天和复诊时评估桥体位置红色美学指数(pink esthetic score, PES);复诊时评估桥体位置和对侧同名牙的改良菌斑指数(modified plaque index,mPI)和改良出血指数(modified sulcus bleeding index,mSBI);记录随访期内各种相关并发症。结果: 本研究共有11个桥体位置留置牙根,随访期内未出现牙根留置的相关并发症;最终修复当天和1年后复诊时的PES平均值分别为8.91±0.94和9.18±0.87,差异无统计学意义(P>0.05);复诊时软组织健康状况良好,桥体位置mPI和mSBI平均值分别为0.82±0.60和0.45±0.52,对侧同名牙mPI和mSBI平均值分别为0.73±0.79和0.36±0.50,两个检测位置的mPI和mSBI平均值差异均无统计学意义(P>0.05)。结论: 牙根留置技术应用于前牙区种植体支持式固定桥桥体位置具有良好的短期临床效果。

关键词: 牙根留置技术, 前牙区, 桥体, 种植修复, 临床效果

Abstract: Objective: To evaluate the outcomes of root submergence technique (RST) in the anterior pontic sites of implant-supported fix partial bridges, and to discuss its technical key points. Methods: Patients who accepted implant-supported fix partial bridges in the anterior maxillary region were chosen for the present study. Roots were submerged in the pontic sites and soft tissue was conditioned with provisional implant-supported restorations after implant osseointegration. Final restorations were produced after 3 months. Patients revisited after one year. Pink esthetic score (PES) was recorded on the day of final restoration and 1-year revisit. Modified plaque index (mPI) and modified sulcus bleeding index (mSBI) were recorded on the day of 1-year revisit. Complications were monitored during the follow-up period. Results: A total of 11 roots were submerged. There was no RST related complication during the follow-up period. Mean PES value at final restoration and 1-year revisit were 8.91±0.94 and 9.18±0.87, respectively, which had no significant difference (P>0.05). At 1-year revisit, mean value of mPI and mSBI at pontic sites were 0.82±0.60 and 0.45±0.52, while 0.73±0.79 and 0.36±0.50 at contralateral sites. The differences between pontic and contralateral sites were not significant (P>0.05). Conclusion: The short-term outcomes of RST are satisfied in the anterior pontic sites of implant-supported fix partial bridges.

Key words: root submergence technique, anterior region, pontic, implant-supported restoration, clinical outcomes