ObjectiveTo investigate the clinical effect of piezosurgery in molar root amputation. MethodA total of 70 patients with periodontal/alveolar abscess were divided into two groups, 35 patients in each group. Patients in observation group were treated with molar root amputation using piezosurgery; patients in control group were treated with surgery using conventional instrument. The surgery time, facial swelling, restriction of mouth opening and postoperative effect were compared between the two groups. ResultThe surgery time of the observation group was (31.45 ±4.19)min, shorter than (45.26±4.31)min of the control group, the difference was statistically significant(P＜0.05). The facial swelling rate after surgery in the observation group was (38.22±6.23)%, lower than (54.26±7.41)% in the control group,the difference was statistically significant(P＜0.05). The restriction of mouth opening in observation group was (10.32±2.04)mm, lower than (18.16±3.12)mm in the control group, the difference was statistically significant(P＜0.05). The postoperative effects were compared between observation group and control group. The success rate in the observation group was 94.3% (33/35); the success rate in the control group was 88.6%(31/35). There was no significant difference between the two groups (P＞0.05). ConclusionThe root amputation with piezosurgery can simplify the operation and effectively reduce operative complications.

无