Mendes da Silva José, Pérola Dos Anjos Braga Pires Cássia, Angélica Mendes Rodrigues Laíse, Palinkas Marcelo, de Luca Canto Graziela, Batista de Vasconcelos Paulo, Valéria Rancan Sandra, Semprini Marisa, Siéssere Selma, Regalo Simone Cecilio Hallak
a Department of Restorative Dentistry, Ribeirão Preto Dental School , University of São Paulo , Ribeirão Preto , Brazil.
b Department of Dentistry , University State of Montes Claros , Montes Claros , Brazil.
Cranio. 2017 Jan;35(1):30-37. doi: 10.1080/08869634.2015.1122417. Epub 2016 Apr 8.
To verify the influence of prominent mandibular tori on the functioning of the stomatognathic system.
The participants included 40 individuals, divided into two groups: those with mandibular tori (GI group: 20 subjects) and those without mandibular tori (GII group: 20 subjects). The authors used the Myosystem-Br1 electromyography system to analyze electromyographic (EMG) activity. For muscle thickness, images of the masseter and temporalis muscles were captured using the NanoMaxx ultrasound. The maximal molar bite force was obtained by means of the Kratos digital dynamometer.
The EMG activity was higher in the masseter muscles in the GI group, compared with the GII group, in all clinical conditions assessed except for the mandibular at rest. In dynamic conditions, this higher EMG activity was also observed in the temporalis muscles. The GI group presented significantly less temporalis muscle thickness than seen in the GII group. The maximal bite force was significantly higher in the GI group.
Mandibular tori promoted morphological and functional changes in the stomatognathic system.
验证下颌隆突对口腔颌面部系统功能的影响。
参与者包括40人，分为两组：有下颌隆突者（GI组：20名受试者）和无下颌隆突者（GII组：20名受试者）。作者使用Myosystem-Br1肌电图系统分析肌电图（EMG）活动。对于肌肉厚度，使用NanoMaxx超声获取咬肌和颞肌的图像。通过Kratos数字测力计获得最大磨牙咬合力。
在所有评估的临床状况中，除下颌静止时外，GI组咬肌的EMG活动均高于GII组。在动态状况下，颞肌也观察到这种较高的EMG活动。GI组颞肌厚度明显小于GII组。GI组的最大咬合力明显更高。
下颌隆突促使口腔颌面部系统发生形态和功能变化。
