【摘要】 目的:评价多曲方丝弓和预成镍钛丝摇椅弓治疗前牙深覆的临床效果。方法:选择Ⅱ～Ⅲ度深覆患者20例,年龄12～27岁,多曲方丝弓组10例,预成镍钛丝摇椅弓组10例,咬合打开前后拍摄头颅侧位片,并进行X线测量。采用SPSS13.0软件包对测量结果进行配对t检验。结果:2种方法咬合打开前后均有切牙压低、磨牙升高,颌骨无明显变化,但多曲方丝弓组打开咬合时间明显短于预成镍钛丝摇椅弓组。结论:2种方法打开咬合的机制基本相同,但多曲方丝弓更有效,是一种快速有效的打开咬合的矫治方法。更多还原

【Abstract】 PURPOSE: To evaluate the effects of multiloop edgewise arch wire(MEAW) and NiTi reverse-curve arch in correcting deep overbite. METHODS: Twenty cases (12-27 year of age)with deep overbite were treated with MEAW or NiTi reverse-curve arch. Pre- and post-treatment cephalogram were taken and analyzed. SPSS13.0 software package was used for paired t test. RESULTS: Two methods could intrude incisors and extrude molars.Maxilla and mandibular had no apparent changes, but less time was spent in the MEAW group. CONCLUSIONS: Two methods could correct deep overbite by the same mechanism, but the MEAW has more effective results.更多还原