隐形矫治器对患者龈沟液中AST和ALP水平的影响

Changes of AST and ALP in Gingival Crevicular Fluid during Orthodontic Treatment with Invisible Aligner

目的：探讨无托槽隐形矫治器与固定矫治器对正畸患者龈沟液中天门冬氨酸转氨酶（AST）和碱性磷酸酶（ALP）水平的影响。方法：选取16~35岁正畸患者30例,随机分为两组,每组各15例。实验组采用隐形矫治器,对照组采用直丝弓固定矫治器。分别在治疗前和治疗后6个月,检测各组患者菌斑指数（PLI）、牙龈指数（GI）和探诊深度（PD）;收集患者龈沟液,检测AST、ALP水平。结果：矫治后6个月,实验组患者牙周指数、AST、ALP水平均明显低于对照组,差异具有统计学意义（P〈0.05）。结论：观察期内,隐形矫治器较固定矫治器更有利于维护患者牙周健康。

Objective：To compare the periodontal health between orthodontic patients with fixed orthodontic appliance and invisible aligner.Methods：A total of 30 patients were randomly divided into two groups.Invisible aligners were used in the experimental group,while fixed orthodontic appliances were used in the control group.Gingival crevicular fluid volume（GCF）,AST and ALP in GCF were measured before treatment and 6 months after treatment respectively.Results：Six months after treatment,GCF,AST and ALP in the experimental group were lower than those in the control group（P〈0.05）.Conclusion：During the observation period,invisible aligner is more propitious to periodontal health than fixed orthodontic appliance.