Changes in the morphology of the labial alveolar bone of protruded permanent maxillary incisors secondary to orthodontic alignment.

Orthodontics : the art and practice of dentofacial enhancement Pub Date : 2011-01-01

Zuber Ahamed Naqvi, Sonahita Agarwal, Tanmay Sharma

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Abstract

Aim: Treatment of protruded maxillary incisors involves retraction. Lingual positioning of protruded incisors improves the width of the attached gingiva. This study was conducted to document changes in the buccal alveolar bone upon retraction of protruded permanent maxillary central incisors.

Methods: Cephalometric radiographs of 13 patients, ages 12 to 18 years, whose orthodontic treatment involved lingual positioning of protruded permanent maxillary central incisors were selected.

Results: Comparison of tracings from radiographs taken before and after treatment indicated that the alveolar bone height increased in 76.9% of cases. In addition, a significant positive correlation (r = 0.95) was found between the changes in the distance from the M point to the incisal edge and alveolar bone height.

Conclusion: The present study indicated that an increase in the amount of buccal alveolar bone was a result of orthodontic treatment that involved lingual positioning of protruded maxillary permanent central incisors.

本刊更多论文

正畸对准后上颌恒切牙唇槽骨形态的变化。

目的:上颌门牙前突的治疗包括后缩。齿突的舌侧定位可提高附着龈的宽度。本研究的目的是观察上颌中切牙前突后牙槽骨的变化。方法:选取13例12 ~ 18岁的上颌恒中切牙舌位正畸治疗患者的头颅x线片。结果:治疗前后x线片示像比较，76.9%的患者牙槽骨高度增高。M点到切缘距离的变化与牙槽骨高度的变化呈显著正相关(r = 0.95)。结论:目前的研究表明，口腔牙槽骨的数量增加是正畸治疗的结果，包括舌定位上颌恒中切牙突出。

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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Orthodontics : the art and practice of dentofacial enhancement

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