The effect of mandibular tongue cribs on dentoskeletal changes in patients with Class II Division 1 malocclusions.

World journal of orthodontics Pub Date : 2010-01-01

Shahin Emami Meibodi, Seyed Amir Reza Fatahi Meybodi, Elham Morshedi Meybodi

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引用次数: 0

Abstract

Aim: To investigate the effect of a modified tongue crib appliance in Class II Division 1 patients with anterior tongue thrust and mandibular deficiency.

Methods: Twenty-three patients (14 females, 9 males) with a mean age of 10.09 ± 1.02 years, a moderate Class II Division 1 occlusion due to a mandibular deficiency, and a mean overbite of -1.1 ± 0.8 mm were treated with a mandibular tongue crib device. Pre- and posttreatment lateral cephalograms were obtained and traced, and various angular and linear variables were measured. These measurements were compared using the paired t test.

Results: The statistical assessment indicated that SNB, facial angle, B-VL, Pog-VL, and interincisal angle increased significantly. IMPA, 1-SN, ANB, and Wits appraisal were significantly decreased (P<.05). The changes of Jarabak Index, SN-MP, SNA, and Y-axis were not significant. In addition, the overjet was reduced.

Conclusion: During the mixed dentition phase, a tongue crib appliance in the mandible is helpful to impede tongue thrust and stimulate mandibular growth.

本刊更多论文

下颌舌槽对ⅱ类1分错牙合患者牙骨骼变化的影响。

目的:探讨一种改良舌床矫治器在舌前突伴下颌骨缺损II类1节患者中的应用效果。方法:23例患者(女性14例，男性9例)，平均年龄10.09±1.02岁，下颌缺陷所致中度II类1分咬合，平均复咬合-1.1±0.8 mm，采用下颌舌槽装置治疗。获得和追踪治疗前后的侧位脑电图，并测量各种角度和线性变量。这些测量值采用配对t检验进行比较。结果:统计学评估显示，SNB、面部角、B-VL、Pog-VL、内眦角均显著升高。IMPA、1-SN、ANB和Wits评分均显著降低(p)。结论:在混合牙列阶段，下颌舌槽矫形器有助于抑制舌突，刺激下颌生长。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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World journal of orthodontics

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