直接粘接式固定保持弓丝的临床应用

The clinical application of direct bonding fixed retaining wire.

目的 :介绍直接粘接式固定保持弓丝的材料及临床应用中的使用方法和效果。方法 :使用 3MUnitek公司所生产的固定保持器套件。按光固材料的使用步骤 ,将弓丝粘到牙列片段的唇侧及舌侧。结果 :32例病例中 ,保持期最长 1.5a,最短 1a ,8人次因材料部分脱落而需重新粘接 ,6个病例保持结束时覆牙合覆盖近Ⅱ度。 2 6例保持良好的矫治效果。表明此种保持器是一种效果稳定、操作简便、美观的保持器。结论 :固定保持器是一种稳定、有效和美观的保持方法。

Objective:To introduce fixed retaining wire materials,applying method and clinical effects.Methods:The fixed retaining kits made in 3MUnitek Co. were used.The wire was bonded with directly bonding technique to the labial or lingual surfaces of teeth according to the application steps of light-cure material.The longest retaining period was 1.5 years,and the shortest one was 1 year.Results:The results showed that among 32 cases there were 8 times of rebonding due to the wire bonding failure.The overbite and over jet of six cases increased about two degree when the retention finished.26 cases maintained fine effect.Conclusions:The fixed retaining appliance is stable,effective and aesthetic. [