97例显微根尖外科手术短期疗效评估

Evaluation of Short-term Therapeutic Effect of 97 Cases Dental Root Apical Microsurgery

目的:评价显微根尖外科手术治疗97例持续性根尖周炎短期临床疗效。方法:对97例持续性根尖周炎的病例进行显微根尖手术,手术过程包括翻瓣、骨开窗、根尖切除、超声倒预备、MTA倒充填。所有患者术后1年复查进行临床和影像学检查,采用卡方检验分析。结果:97例患者术后1年随访,57.7%成功,35.1%改善,7.2%失败。治疗结果与患者性别、年龄、牙位无明显统计学关系。病损大小和组织病理类型与预后有明显的统计学关系,大的骨缺损和根尖周囊肿的预后较差(P<0.05)。结论:通过使用口腔显微镜、显微器械、超声工作尖、生物相容性好的倒充填材料、严格的显微根尖手术操作,持续性根尖周病的患牙可获得良好的预后。

Objective： To evaluate the short-term therapeutic effect of 97 persistent apical periodontitis cases trea- ted with dental root apical microsurgery. Methods： Dental root apical microsurgery was performed for 97 persistent apical periodontitis cases. The microsurgery included raising mucoperiosteal flap, ostectomy, root apical resection, rertrograde preparation with ultrasonic tips, and rertrograde filling with MTA. All patients were reviewed after one year, and the clinical and radiographical examination were performed. Chi-square test was used to analyze the re- sults. Results： The rate of healing was 57.7%, the rate of improvement was 35.1%, and the rate of failure was 7. 2%. The therapeutic effect was not statistically related to gender, age, and tooth type. The success rate was statis- tically different between different sizes and different histopathologic types. The cysts with larger size of lesions had worse prognosis （P〈0.05）. Conclusion： Dental root apical microsurgery may improve the prognosis of persistent apical periodontitis therapy