纠正不良舌习惯矫治前牙开

目的研究通过纠正不良舌习惯治疗前牙开的疗效及作用机制。方法选取11例前牙开并伴有不良吐舌习惯的患者,年龄14~25岁,平均16.4岁。其中,拔除4颗第2双尖牙2例;拔除4颗第1双尖牙1例;拔除上颌2颗第1双尖牙及下颌第2双尖牙1例;拔除2颗下颌第1磨牙1例;其余6例采用非拔牙矫治。矫治过程中自始至终贯穿口腔功能训练,对于较顽固的不良舌习惯采用固定舌刺等方法破除,整个过程不使用任何前牙区的垂直牵引。结果从矫治开始到前牙建立正常覆所用时间最短5个月,最长11个月,平均7.6个月。开矫治以前牙伸长为主。结论纠正不良舌习惯是治疗牙性开行之有效的方法。

Eliminate Tongue Thrust Habit in Anterior Open Bite

Objective The purpose of this study is to evaluate the effectiveness and mechanism of eliminating tongue thrust habit in anterior open bite,and to investigate the correlation between the anterior open bite and the tongue thrust habit.Methods 11 anterior open bite patients with tongue thrust habit(3 men and 8 women) aged from 14 to 25 were treated by eliminating tongue thrust habit.Among them 5 patients were treated with extraction and 6 without extraction.Myofunctional training and in some tough case tongue crib were used to eliminate tongue thrust habit and without any vertical elastic during the orthodontic treatment.Results All the cases got satisfactory results in short period of time(from 5 months to 11 months).The main characteristic of this treatment result is anterior teeth extrusion.Conclusion Eliminate tongue thrust habit is a effective way of correct anterior open bite and the tongue thrust habit may be the most direct cause of anterior open bite.