Gamboa Natalia Andrea, Fuentes Aler Daniel, Matus Carolina Paz, Marín Karla Francesca, Gutiérrez Mario Felipe, Miralles Rodolfo
Faculty of Dentistry, Institute for Research in Dental Sciences, University of Chile, Santiago, Chile.
Faculty of Medicine, Oral Physiology Laboratory, Biomedical Sciences Institute, University of Chile, Santiago, Chile.
Cranio. 2022 Jan;40(1):48-54. doi: 10.1080/08869634.2019.1686247. Epub 2019 Oct 30.
: To evaluate the activity of mentalis (MN), buccinator (BC), and suprahyoid (SH) muscles among participants with different lip competence..: Sixty-three participants were classified clinically and assigned to the following groups of 21 each: 1) competent lips (competent), 2) incompetent lips (incompetent), or 3) forced lip closure (forced). Activity was recorded at rest, swallowing, speaking, reciprocal compression of the lips, and chewing.: MN activity in incompetent was significantly higher than competent at rest, and it was significantly higher in incompetent and forced when compared with competent during swallowing (< .05). No differences among incompetent and forced were observed (> .05). During speaking, reciprocal compression of the lips, and chewing, MN activity did not show significant differences among groups. BC and SH activity did not show significant differences (> .05).: MN activity during swallowing can be considered a relevant biomarker to differentiate between forced and competent participants.
评估不同唇部功能参与者的颏肌（MN）、颊肌（BC）和舌骨上肌群（SH）的活动情况。：63名参与者经临床分类，每组21人，分为以下几组：1）唇部功能正常（正常），2）唇部功能不全（不全），或3）强制唇部闭合（强制）。记录休息、吞咽、说话、唇部相互挤压和咀嚼时的活动情况。：休息时，功能不全组的MN活动显著高于正常组，吞咽时，功能不全组和强制组的MN活动显著高于正常组（<0.05）。功能不全组和强制组之间未观察到差异（>0.05）。在说话、唇部相互挤压和咀嚼过程中，各组MN活动未显示出显著差异。BC和SH活动未显示出显著差异（>0.05）。：吞咽时的MN活动可被视为区分强制参与者和正常参与者的相关生物标志物。
