Department of Basic and Oral Biology, Ribeirão Preto School of Dentistry, University of São Paulo, Ribeirão Preto, Brazil.
Department of Basic and Oral Biology, School of Dentistry of Ribeirão Preto of the University of São Paulo; Department of Neuroscience and Behavioral Sciences, Faculty of Medicine of Ribeirão, Ribeirão Preto, Brazil, Phone: +55 16 33150281, e-mail:
J Contemp Dent Pract. 2024 Mar 19;25(3):207-212. doi: 10.5005/jp-journals-10024-3656.
This longitudinal study aimed to evaluate the electromyographic activity of the masseter and temporal muscles in adult women who underwent buccal fat removal.
The sample consisted of 20 healthy adult women with no temporomandibular dysfunction and normal occlusion, who were assessed before, 30, and 60 days after the surgery. The electromyographic signal of the masseter and temporal muscles was captured through mandibular tasks including rest, protrusion, right and left laterality, and maximum voluntary contraction with and without parafilm. The results obtained were tabulated and the Shapiro-Wilk normality test was performed, which indicated a normal distribution. Statistical analysis was performed using the repeated measures test ( < 0.05).
Significant differences were observed between time periods in maximum voluntary contraction for the left masseter muscle ( = 0.006) and in maximum voluntary contraction with parafilm for the right temporal ( = 0.03) and left temporal ( = 0.03) muscles.
Bichectomy surgery did not modify the electromyographic activity of the masseter and temporal muscles during the rest task but may have influenced variations in the electromyographic signal during different mandibular tasks after 60 days of surgery, suggesting compensatory adaptations and functional recovery.
Understanding the impact of buccal fat removal surgery on the stomatognathic system function provides insights into postoperative functional recovery and potential compensatory adaptations, guiding clinical management and rehabilitation strategies for patients undergoing such procedures. How to cite this article: Cardoso AHDLS, Palinkas M, Bettiol NB, . Bichectomy Surgery and EMG Masticatory Muscles Function in Adult Women: A Longitudinal Study. J Contemp Dent Pract 2024;25(3):207-212.
本纵向研究旨在评估接受颊脂垫去除术的成年女性的咀嚼肌和颞肌的肌电图活动。
样本由 20 名无颞下颌功能障碍和正常咬合的健康成年女性组成，在手术前、术后 30 天和 60 天进行评估。通过下颌任务采集咀嚼肌和颞肌的肌电图信号，包括休息、前伸、左右侧方和最大自主收缩，以及有无 parafilm。将获得的结果制成表格，并进行 Shapiro-Wilk 正态性检验，表明呈正态分布。使用重复测量检验进行统计学分析（ < 0.05）。
在左侧咀嚼肌最大自主收缩（ = 0.006）和右侧颞肌（ = 0.03）和左侧颞肌（ = 0.03）最大自主收缩时使用 parafilm 期间，不同时间段之间观察到显著差异。
颊脂垫切除术不会改变咀嚼肌和颞肌在休息任务期间的肌电图活动，但可能会影响术后 60 天不同下颌任务期间的肌电图信号变化，表明存在代偿适应和功能恢复。
了解颊脂垫去除术对咀嚼系统功能的影响，可以深入了解术后功能恢复和潜在的代偿适应，为接受此类手术的患者提供临床管理和康复策略的指导。
Cardoso AHDLS, Palinkas M, Bettiol NB,. Bichectomy Surgery and EMG Masticatory Muscles Function in Adult Women: A Longitudinal Study. J Contemp Dent Pract 2024;25(3):207-212.
