Abstract:

Objective: To discuss the clinical effect of minimally invasive odontotomy in residual roots and crowns removal. Methods: From March 2016 to September 2019, 272 cases(320 residual roots and crowns) were randomly divided into two groups. The teeth in group A (experimental group) were extracted by minimally invasive odontotomy method, the teeth in group B (control group) were extracted with traditional lever technique. The operation time length, integrity of extraction socket, gingival laceration, patients' satisfaction rate, blood pressure changes, postoperative complications were recorded and statistically analyzed. Results: The operation time, gingival laceration, blood pressure changes and postoperative complications in the experimental group were significantly lower than those in the control group, and the integrity of extraction socket and satisfaction rate of the experiment group were higher than those in the control group. The difference between the two groups is statistically significant(P<0.05). Conclusion: Using minimally invasive odontotomy technique to remove residual roots and crowns has obvious clinical effects, which is worth promoting.

Key words: residual root, residual crown, tooth segmentation

摘要：

目的：观察应用牙体分割术拔除残根、残冠的临床效果。方法：选择2016-03—2019-09间在我院拔除残根、残冠的272例病例，共计320颗残根、残冠。将所有病例随机分为2组，一组采用牙体分割技术拔除（研究组），另一组采用传统锤凿法拔除（对照组）。比较分析2种方法术后相关指标。结果：研究组的手术时间较对照组短；肿胀、疼痛程度较对照组轻微；血压变化较对照组小；拔牙窝完整率、手术满意度较对照组高。2组间差异有统计学意义（P<0.05）。结论：运用牙体分割术拔除残根、残冠，时间短、并发症少、患者痛苦小，值得推广。

关键词: 残根, 残冠, 牙体分割

CLC Number: 

• R782