Gomes Cid Andre Fidelis de Paula, Politti Fabiano, El Hage Yasmin, de Sousa Dowglas Fernando Magalhães, Amorin Cesar Ferreira, Gonzalez Tabajara de Oliveira, Biasotto-Gonzalez Daniela Aparecida
Rehabilitation Sciences Master's Program, Nove de Julho University (UNINOVE): Av. Francisco Matarazzo, 612 - Água Branca, São Paulo, SP, CEP: 05001100 Brazil.
Physiotherapy Master's Program, Cidade de São Paulo University (UNICID), São Paulo, SP, Brazil.
J Jpn Phys Ther Assoc. 2014;17(1):8-13. doi: 10.1298/jjpta.Vol17_002.
This study was to determine whether non-habitual (isotonic) bilateral and unilateral mastication with eyes open and eyes closed exerts an influence on static balance in individuals without temporomandibular disorder (TMD).
An observational, cross-sectional study was conducted involving 20 volunteers aged 20 to 40 years without temporomandibular disorder. Static balance was assessed with the individuals in a quiet standing position on a force plate performing different types of mastication under six separate conditions.
Significant differences (p < .05) were found in the area of oscillation during bilateral mastication (eyes open) and the right unilateral mastication, significant differences were only found for oscillation area with eyes open and mediolateral center of pressure with eyes closed (p < .05).
The findings of the present study reveal that the stomatognathic system (bilateral and unilateral mastication) promote changes in some variables of static balance.
本研究旨在确定在无颞下颌关节紊乱症（TMD）的个体中，睁眼和闭眼时的非习惯性（等张）双侧及单侧咀嚼是否会对静态平衡产生影响。
进行了一项观察性横断面研究，纳入20名年龄在20至40岁之间、无颞下颌关节紊乱症的志愿者。在六个不同条件下，让个体在测力平台上安静站立，进行不同类型的咀嚼动作，以此评估静态平衡。
在双侧咀嚼（睁眼）和右侧单侧咀嚼过程中的摆动面积存在显著差异（p < .05），仅在睁眼时的摆动面积和闭眼时的压力中心左右方向上发现显著差异（p < .05）。
本研究结果表明，口颌系统（双侧及单侧咀嚼）会促使静态平衡的某些变量发生变化。
