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目的:寻找一种椅旁操作时间短、程序简单、固定效果佳的粘接系统在外伤牙固定治疗中的应用。方法:选择外伤松动牙患者78例共计139颗患牙,随机分为实验组71颗患牙,采用正畸用光固化玻璃离子粘接剂+麻花丝固定,对照组68颗患牙采用全酸蚀粘接树脂+麻花丝固定,固定2~4周时去除固定装置。拆除固定装置6个月后复查,对患牙的疗效进行评价。结果:拆除固定装置6个月后实验组成功率92.9%,对照组成功率91.2%,两组病例差异无统计学意义。结论:正畸用光固化玻璃离子粘接剂+麻花丝固定外伤松动牙的疗效和稳固性可达到全酸蚀粘接+麻花丝树脂固定的水平,但前者操作简单,适宜临床应用。
OBJECTIVE: To find a kind of adhesive system with short operation time, simple procedure and good fixation effect in the treatment of traumatic tooth fixation. Methods: A total of 78 teeth with loosened teeth were selected and randomly divided into experimental group of 71 teeth, orthodontic light-cured glass ionomer adhesive + hemp silk fixation, and control group of 68 teeth with all-acid Erosion adhesive resin + hemp fixed, fixed 2 to 4 weeks to remove the fixture. Remove the fixture 6 months after the review, the evaluation of the efficacy of teeth. Results: After 6 months of fixation, the success rate of experimental group was 92.9% and that of control group was 91.2%. There was no significant difference between the two groups. Conclusion: The efficacy and stability of light-cured glass ionomer orthodontics + rayon fixation for traumatic loose tooth can reach the level of all-acid etching adhesion and cannabis resin fixation, but the former is simple and suitable for clinical application.