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Electromyographic, Ultrasonographic, and Ultrasound Elastographic Evaluation of the Masseter Muscle in Class III Patients Before and After Orthognathic Surgery.
Sunal Akturk, Ezgi; Eren, Hakan; Gorurgoz, Cansu; Orhan, Kaan; Karasu, Hakan Alpay; Akat, Bora; Toygar Memikoglu, Tülin Ufuk.
Afiliación
  • Sunal Akturk E; Department of Orthodontics, Faculty of Dentistry, Bezmialem Vakif University, Istanbul.
  • Eren H; Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ankara University.
  • Gorurgoz C; Private Practice, Ankara, Turkey.
  • Orhan K; Department of Oral and Maxillofacial Radiology, Faculty of Dentistry, Ankara University.
  • Karasu HA; OMFS IMPATH Research Group, Department of Imaging and Pathology, Faculty of Medicine, University of Leuven and Oral and Maxillofacial Surgery, University Hospitals Leuven, Leuven, Belgium.
  • Akat B; Deparment of Oral and Maxillofacial Surgery.
  • Toygar Memikoglu TU; Department of Prosthodontics.
J Craniofac Surg ; 31(7): 2049-2053, 2020 Oct.
Article en En | MEDLINE | ID: mdl-32472876
ABSTRACT

PURPOSE:

The aim of this study was to examine changes in the electromyographic activity, thickness, width, and hardness of the masseter muscle from before to after orthognathic surgery. MATERIAL AND

METHODS:

The study included 15 patients with Class III dentofacial deformities who were treated with combined orthodontic and orthognathic surgery. Fifteen individuals with normal occlusion and no signs or symptoms of temporomandibular joint dysfunction were used as controls. All records were obtained bilaterally in the study group before surgery (T1), at 3 months after surgery (T2), and in the control group (CG) while at rest and in maximum voluntary contraction (MVC).

RESULTS:

There was no difference in resting masseter muscle activity between T1, T2, and CG. Resting thickness and width of the masseter muscle did not differ significantly between T1 and T2. MVC masseter muscle activity and thickness increased significantly and width decreased significantly from T1 to T2 but did not reach CG values. Muscle hardness increased from T1 to T2.

CONCLUSIONS:

The authors' findings indicate that despite improved muscle activity and dimensions, postoperative 3 months is still early period for adaptation of the masseter muscles to the new occlusion and skeletal morphology.
Asunto(s)

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Maloclusión de Angle Clase III / Músculo Masetero Tipo de estudio: Diagnostic_studies / Evaluation_studies Límite: Adolescent / Adult / Female / Humans / Male Idioma: En Revista: J Craniofac Surg Asunto de la revista: ODONTOLOGIA Año: 2020 Tipo del documento: Article

Texto completo: 1 Colección: 01-internacional Banco de datos: MEDLINE Asunto principal: Maloclusión de Angle Clase III / Músculo Masetero Tipo de estudio: Diagnostic_studies / Evaluation_studies Límite: Adolescent / Adult / Female / Humans / Male Idioma: En Revista: J Craniofac Surg Asunto de la revista: ODONTOLOGIA Año: 2020 Tipo del documento: Article