关键词: 冲击法, 撬拔法, 牙根

Abstract:

Objective This study aims to compare the effect of shock and lever methods used in periodontal gap reduced tooth root extraction operation. Methods A total of 140 single tooth roots were randomly divided into two treatment groups. One group underwent the shock method, and the other group underwent the lever method. The first group included 72 tooth roots, and the second group included 68 tooth roots. Operation time and operation complications were compared. Results The operating time for the shock and lever methods were (2.15±0.55) min and (4.03±0.88) min (P<0.01), respectively. A significant difference on gingival tear and alveolar fracture between the shock and lever methods was observed(P<0.05). Significant difference of tooth root fracture was not found during surgery(P>0.05). Postoperative pain was less in the shock method than that in the lever method(P<0.05), and the time of epithelial covering extraction wound was shorter in the shock method than that in the lever method(P<0.01). No postoperative bleeding was recorded in both types of procedures. Dry socket occurred in a case of lever method. Conclusion The shock method is better for tooth root extraction operation. This method could shorten the operation time, reduce the intraoperative and postoperative complications, and is conducive for wound healing after extraction.

Key words: shock method, lever method, tooth root