Jaw muscle activity patterns in women with chronic TMD myalgia during standardized clenching and chewing tasks.
Cranio
; 39(2): 157-163, 2021 Mar.
Article
en En
| MEDLINE
| ID: mdl-30896353
ABSTRACT
Objective:
To examine jaw muscle activity of women with chronic temporomandibular myalgia (mTMD). It was hypothesized that mTMD patients had a different masticatory muscle activity, increased work during isometric clenching, and a reduced chewing frequency as compared to TMD-free subjects.Methods:
The electromyographic (EMG) activity of temporalis anterior (TA) and masseter (MM) of 27 women with mTMD and 18 TMD-free women was recorded during clenching tasks and while chewing. EMG indices comparing the activity of paired jaw muscles were computed.Results:
Women with TMD myalgia had greater muscular work than controls (p = 0.025). The activity of TA and MM were similar between right and left sides in both groups. mTMD patients had a greater activity of MM than TA (p = 0.028). No between-groups differences were found in chewing rate.Conclusion:
Women with mTMD showed an abnormal recruitment of the jaw-closing muscles during functional tasks, which may predispose to further tissue injury.Palabras clave
Texto completo:
1
Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Trastornos de la Articulación Temporomandibular
/
Masticación
Tipo de estudio:
Etiology_studies
Límite:
Female
/
Humans
Idioma:
En
Revista:
Cranio
Asunto de la revista:
ODONTOLOGIA
Año:
2021
Tipo del documento:
Article
País de afiliación:
Italia