Dental arch width stability after quadhelix and edgewise treatment in complete unilateral cleft lip and palate
Dental arch width stability after quadhelix and edgewise treatment in complete unilateral cleft lip and palate
复制标题
完全单侧唇腭裂四螺旋和边缘治疗后牙弓宽度的稳定性
DOI：
10.2319/070506-272.1
复制
发表时间：
2007-11-01
影响因子：
3.4
通讯作者：
Lin, Jiuxiang
中科院分区：
文献类型：
--
作者：
Li, Weiran;Lin, Jiuxiang
目的：目的：评价单侧唇腭裂（UCLP）患者应用四螺旋和方丝弓矫治器矫治后牙弓的横向稳定性。所有人都在至少15个月前停止了保留。使用三维牙科模型分析仪直接对预处理、后处理和后拉伸研究模型进行测量。测量尖牙、第一前磨牙、第二前磨牙、第一磨牙、基骨和牙槽弓的牙间宽度，比较两组间的差异，并进行双向方差分析和Fisher's LSD检验。上颌牙弓前部的牙弓扩张量大于后部，上颌第一前磨牙牙弓的牙弓扩张量最大。固位后上牙弓宽度减小，上尖牙（1.3 +/-0.8 mm）和第一前磨牙（1.5 +/-0.8 mm）区域的牙弓宽度减小具有统计学显著性。增加的上牙弓宽度在每个区域和较低的第一前磨牙间的宽度保持显着的扩张后retention.Conclusions：牙弓的宽度增加显着扩大后，与四螺旋，然后预调整方丝弓治疗。复发发生，特别是在上尖牙和第一前磨牙区域，但大部分的治疗效果上弓保持后。
Objective: To evaluate the transverse stability of the dental arch in unilateral cleft lip and palate (UCLP) patients after orthodontic treatment with quadhelix and edgewise appliances.Materials and Methods: Twenty repaired complete UCLP patients with posterior crossbites were chosen as the study subjects. All had ceased retention at least 15 months previously. Measurements were carried out directly on the pretreatment, posttreatment, and postretention study models using a three-dimensional dental cast analyzer. The interdental widths were measured for the canines, first premolars, second premolars, first molars, basal bone, and the alveolar arch. Two-way analysis of variance and Fisher's LSD was performed in comparing the difference between intervals.Results: Lower inter-first-premolar width and upper arch widths of each region increased significantly (P < .05) after orthodontic treatment. The expansion was greater in the anterior than the posterior region in the upper arch, and the greatest increase was in the upper first premolar region. The upper arch width decreased after retention, with the decrease of the arch width in the upper canine (1.3 +/- 0.8 mm) and first premolar (1.5 +/- 0.8 mm) regions being statistically significant. The increased upper arch width in each region and the lower inter-first-premolar width maintained significant expansion after retention.Conclusions: The widths of the dental arch increased significantly after expansion with a quadhelix followed by preadjusted edgewise treatment. Relapse occurred, especially in the upper canine and first premolar region, but most of the treatment effect on the upper arch remained after retention.