目的 观察分析外伤性脱位牙运用小环连续结扎法治疗的临床效果,及患者对牙齿满意度情况。方法 研究纳入2018年1月—2020年3月收治90例外伤性牙脱位患者,利用随机双盲法分为三组,对照①组30例接受牙弓夹板治疗,对照②组30例接受金属丝“8”字结扎法治疗,观察组30例采取改良小环连续结扎法治疗,比较三组治疗效果及患者术后满意度情况。结果 治疗前三组患者牙冠根比、附着丧失、松动度比较（P>0.05）;治疗后与治疗前对比,三组松动度明显下降,均低于治疗前,差异显著（P<0.05）;而三组牙冠根比、附着丧失与治疗前比较,无统计学意义（P>0.05）;治疗后三组指标对比,无意义（P>0.05）;观察组患者术后牙齿满意度高于对照①、②组,统计学差异显著（P<0.05）。随访6个月后,观察组治疗总有效率为100.00%,与对照组①、②组比较,均明显升高,差异有统计学意义（P<0.05）。结论 对外伤脱位牙患者运用小环连续结扎治疗,可有效改善患者牙齿松动度,治疗效果确切,同时有助于提高患者满意度,值得推广。

Objective To observe and analyze the clinical effect of continuous loop wiring on traumatic dislocation teeth and the satisfaction of patients with the treatment. Methods From January 2018 to March 2020, a total of 90 patients with traumatic tooth dislocation in the dental department of our hospital were randomly divided into three groups according to a random and double-blind design. The control group A （30 cases） was treated with dental arch splints, the control group B （30 cases） was treated with metal wires by figure-of-eight ligation, and the observation group （30 cases） was treated with modified continuous loop wiring. The treatment effect and postoperative satisfaction of the three groups were compared. Results Before treatment, the crown-to-root ratio, attachment loss, and mobility were not different among the three groups （P>0.05）. After treatment,the mobility of the three groups decreased significantly compared with before treatment （P<0.05）, except the crown-to-root ratio and attachment loss （P>0.05）. There were no differences in the three indicators among the three groups after treatment （P>0.05）. The observation group showed a higher satisfaction rate of detal treatment than the two control groups did （P<0.05）. After 6 months of follow-up, the total effective rate of the observation group was 100%, which was significantly higher than that of the control group A or B （P<0.05）. Conclusion Continuous loop wiring for traumatic dislocated teeth is worthy of wide application because it can effectively improve tooth mobility and then patients’ satisfaction.