下磨牙残根冠分根保存修复的临床应用

Clinical Application of Conservaive Prosthetics of Molar Residual Roots and Crowns by Separating Roots and Crowns

目的:探讨下磨牙残根冠分根保存修复的临床效果。方法:将35颗下磨牙的残根残冠,经过完善的根管处理和治疗之后,采用分根法进行保存修复。经过1～3年内随访,用主观评价、牙龈出血等指征和成功率评价临床效果。结果:35颗下磨牙的残根残冠,经过1～3年随访观察,保存成功率为87.9%,患者的牙龈出血稳定、主观评价良好,患牙可正常行使咀嚼功能。在单冠修复与联冠修复方面,则不存在效果上的显著性差异。结论:合理地修复设计和修复后维护,能有效提高下磨牙残冠保存率。

Objective To explore the clinical effects of split-root conservation and restoration for mandibular molar crown and root.Methods 35 molar residual roots and crowns, after a complete root canal treatment and therapy,using split-root method for Conservation and Restoration. After 1～3 year follow-up, with subjective evaluation,gums bleeding indications and evaluation of the success rate of clinical results.Results The success rate is 87.9% for 35 molar residual roots and crowns,patients＇gum was gradually recovered.Subjective evaluation is also satisfactory. Teeth can normal function.On the single-crown and multi-crown area,there is no significant difference.Conclusion Rational design and repair after repair maintenance,can improve the preservation rate under the residual molar crown.