快速上颌扩弓是否会增加鼻咽部空间并改善鼻气道阻力？

Does rapid maxillary expansion increase nasopharyngeal space and improve nasal airway resistance?

作者信息

Langer Marjorie Regina Eguren, Itikawa Carla Enoki, Valera Fabiana Cardoso Pereira, Matsumoto Mírian Aiko Nakane, Anselmo-Lima Wilma Terezinha

机构信息

Dental School of Ribeirão Preto, University of São Paulo, Ribeirão Preto, SP, Brazil.

出版信息

Int J Pediatr Otorhinolaryngol. 2011 Jan;75(1):122-5. doi: 10.1016/j.ijporl.2010.10.023. Epub 2010 Nov 18.

DOI:10.1016/j.ijporl.2010.10.023

PMID:21093065

Abstract

OBJECTIVE

To evaluate the effect of rapid maxillary expansion (RME) on the dimension of the nasopharyngeal space and its relation to nasal airway resistance.

METHODS

Twenty-five school-age children (from 7 to 10 year-old) with mouth and/or mixed breathing, with mixed dentition and uni- or bilateral posterior crossbite involving the deciduous canines and the first permanent molars, were evaluated. RME was placed and remained during 90 days. Rhinomanometry and orthodontic documentation were performed at four different times, i.e., before (T(1)), immediately after (T(2)), 90 days (T(3)) and 30 months (T(4)) after RME.

RESULTS

Differences in nasopharyngeal area and in nasal airway resistance were observed only 30 months after RME, and could be explained by facial growth, and not because of the orthodontic procedure.

CONCLUSION

RME does not influence on nasopharyngeal area or nasal airway resistance in long-term evaluation.

摘要

目的

评估快速上颌扩弓（RME）对鼻咽腔尺寸的影响及其与鼻气道阻力的关系。

方法

对25名患有口呼吸和/或混合性呼吸的学龄儿童（7至10岁）进行评估，这些儿童处于混合牙列期，存在单侧或双侧后牙反合，累及乳牙尖牙和第一恒磨牙。放置RME并持续90天。在四个不同时间点进行鼻阻力测量和正畸记录，即RME前（T(1)）、RME后即刻（T(2)）、RME后90天（T(3)）和30个月（T(4)）。