混合牙列期开牙合患者中与带有唇挡的固定和可摘矫治器相关的牙颌面改变
Dentoskeletal changes associated with fixed and removable appliances with a crib in open-bite patients in the mixed dentition.
作者信息
Giuntini Veronica, Franchi Lorenzo, Baccetti Tiziano, Mucedero Manuela, Cozza Paola
机构信息
Department of Orthodontics, University of Florence, Florence, Italy.
出版信息
Am J Orthod Dentofacial Orthop. 2008 Jan;133(1):77-80. doi: 10.1016/j.ajodo.2007.07.012.
INTRODUCTION
The aim of this study was to compare the effects of the quad-helix/crib (Q-H/C) appliance and a removable plate with a crib (RP/C) in patients with dentoskeletal open bite.
METHODS
Both samples consisted of 20 subjects. Lateral cephalograms were analyzed before treatment (T1) and after active treatment (T2). The average age at T1 was 8.4 years, and the mean duration of treatment was 1.5 years in both groups. The T2-T1 changes in the 2 groups were compared with a nonparametric test for independent samples (Mann-Whitney U test).
RESULTS AND CONCLUSIONS
Both the Q-H/C and the RP/C appliances induced favorable dental effects. However, a compliance-free appliance, such as the Q-H/C appliance, produced more favorable vertical skeletal changes.
引言
本研究的目的是比较四螺旋/牙垫（Q-H/C）矫治器和带牙垫的可摘矫治器（RP/C）对牙颌面开牙合患者的治疗效果。
方法
两组样本均由20名受试者组成。在治疗前（T1）和积极治疗后（T2）对头颅侧位片进行分析。T1时的平均年龄为8.4岁，两组的平均治疗时间均为1.5年。采用独立样本非参数检验（曼-惠特尼U检验）比较两组T2-T1的变化。
结果与结论
Q-H/C矫治器和RP/C矫治器均产生了良好的牙齿治疗效果。然而，像Q-H/C矫治器这种无需患者配合的矫治器，能产生更有利的垂直骨骼变化。
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