Valentim Amanda Freitas, Motta Andréa Rodrigues, Silva Júlia Ana Soares, Furlan Renata Maria Moreira Moraes, Porto Matheus Pereira, Becker Helena Maria Gonçalves, Franco Letícia Paiva, Gama Ana Cristina Côrtes
Children and Adolescent Health at the Federal, University of Minas Gerais - UFMG, Belo Horizonte, Minas Gerais, Brazil.
Department of Speech-Language-Hearing Sciences, Federal University of Minas Gerais - UFMG, Belo Horizonte, Minas Gerais, Brazil.
Eur Arch Otorhinolaryngol. 2025 Feb;282(2):1051-1060. doi: 10.1007/s00405-024-09038-5. Epub 2024 Oct 21.
To compare the temperature of thermoanatomic points and areas of the upper and lower lips between mouth-breathing and nasal-breathing children.
This cross-sectional observational study had a sample of 30 nasal-breathing and 30 mouth-breathing children aged 4 to 11 years. One front-view, one left-view, and one right-view infrared thermogram of the face were acquired from each participant. A total of 14 thermoanatomic points plus the upper lip and lower lip areas were marked on the front-view thermograms, while on the side-view thermograms, six thermoanatomic points were marked. The research also calculated the difference between the temperature of the upper and lower lip areas (∆T area) and between the temperature of the points on the upper and lower lips (∆T points). The normalized mean temperatures of points and areas and temperature differences were compared between groups with the t-test and Mann-Whitney test.
The temperature of the thermoanatomic points closest to the lip (nasolabial, Labial Commissure, and lower labial), areas of the lips, and external acoustic meatus was lower in mouth breathers than in nasal breathers, which did not happen for most other points. ∆T area and ∆T points were not different between the groups.
Thermography is a promising complementary diagnostic tool, since showed mouth-breathing children had lower temperatures in the region of the lips than nasal breathers.
比较口呼吸儿童和鼻呼吸儿童上下唇的热解剖点及区域的温度。
这项横断面观察性研究纳入了30名4至11岁的鼻呼吸儿童和30名口呼吸儿童作为样本。为每位参与者采集了面部的一张正视图、一张左视图和一张右视图红外热像图。在正视图热像图上标记了总共14个热解剖点以及上唇和下唇区域，而在侧视图热像图上标记了6个热解剖点。研究还计算了上唇和下唇区域温度之间的差异（∆T区域）以及上下唇上各点温度之间的差异（∆T点）。采用t检验和曼-惠特尼检验比较两组之间各点和区域的标准化平均温度以及温度差异。
口呼吸儿童中，最靠近嘴唇的热解剖点（鼻唇沟、口角和下唇）、嘴唇区域以及外耳道的温度低于鼻呼吸儿童，而其他大多数点并非如此。两组之间的∆T区域和∆T点没有差异。
热成像术是一种很有前景的辅助诊断工具，因为研究显示口呼吸儿童嘴唇区域的温度低于鼻呼吸儿童。
