关键词: 满意度, 外伤脱位牙, 小环连续结扎, 牙弓夹板, 金属丝“8”字结扎法

Abstract: 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.

Key words: Satisfaction, Traumatic dislocated teeth, Continuous loop wiring, Dental arch splint, Figure-of-eight ligation with metal wires