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首页> 外文期刊>Brazilian Journal of Otorhinolaryngology >Rapid maxillary expansion in mouth breathers: a short-term skeletal and soft-tissue effect on the nose ☆
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Rapid maxillary expansion in mouth breathers: a short-term skeletal and soft-tissue effect on the nose ☆

机译：上呼吸器的上颌快速扩张：对鼻子的短期骨骼和软组织作用☆

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Introduction Rapid maxillary expansion can change the form and function of the nose. The skeletal and soft tissue changes can influence the esthetics and the stability of the results obtained by the procedure. Objective The aim of this retrospective study was to evaluate the short-term effects of rapid maxillary expansion on the skeletal and soft tissue structures of the nose, in mouth-breathing patients, using a reliable and reproducible, but simple methodology, with the aid of computed tomography. Methods A total of 55 mouth-breathing patients with maxillary hypoplasia were assessed and were divided into an experimental group treated with rapid maxillary expansion(39 patients, 23 of which were male and 16 female, with an average age of 9.7 years and a standard deviation of 2.28, ranging from 6.5 to 14.7 years) and a control group (16 patients, 9 of which were male and 7 female, with an average age of 8.8 years, standard deviation of 2.17, ranging from 5.11 to 13.7 years). The patients of the experimental group were submitted to multislice computed tomography examinations at two different points in time: (T1) pre-rapid maxillary expansion and (T2) three months after the procedure. The control group underwent to the same exams at the same intervals of time. Four skeletal and soft tissue variables were assessed, comparing the results of T1 and T2. Results There was in the experimental group a significant increases in all the skeletal and soft tissue variables ( p 0.05) but no significant alteration was found in the control group. When comparing the experimental group and the control group, the most important change occurred in the width of the pyriform aperture ( p 0.001). Conclusion Rapid maxillary expansion is capable of altering the shape and function of the nose, promoting alterations in skeletal and soft tissue structures. This kind of study may, in the future, permit the proper planning of esthetic procedures at the tip and base of the nose and also the performance of objective measurements in early or late surgical outcomes.
机译：简介快速的上颌扩张可以改变鼻子的形状和功能。骨骼和软组织的变化会影响手术过程的美学效果和结果的稳定性。目的这项回顾性研究的目的是在可靠的，可重复的但简单的方法的帮助下，评估上颌快速扩张对口呼吸患者鼻子的骨骼和软组织结构的短期影响。 CT检查。方法评估55例上颌骨发育不全的呼气病人，分为快速上颌扩张实验组（39例，男性23例，女性16例，平均年龄9.7岁，标准差）。分别为2.28例（6.5至14.7岁）和对照组（16例患者，其中9例为男性，7例女性，平均年龄为8.8岁，标准差为2.17，范围为5.11到13.7岁）。实验组的患者在两个不同的时间点接受了多层计算机体层摄影检查：（T1）快速上颌前扩张和（T2）术后三个月。对照组在相同的时间间隔接受相同的检查。评估了四个骨骼和软组织变量，比较了T1和T2的结果。结果实验组的所有骨骼和软组织变量均有显着增加（p <0.05），但对照组无明显变化。当比较实验组和对照组时，最重要的变化发生在梨形孔的宽度上（p <0.001）。结论快速的上颌扩张能够改变鼻子的形状和功能，促进骨骼和软组织结构的改变。将来，此类研究可能允许对鼻尖和鼻根处的审美程序进行适当的规划，并允许在早期或晚期手术结果中进行客观测量。

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