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Pró-Fono Revista de Atualização Científica

versão impressa ISSN 0104-5687

Resumo

TESSITORE, Adriana; MAGNA, Luis Alberto  e  PASCHOAL, Jorge Rizzato. Angular measurement for determining muscle tonus in facial paralysis. Pró-Fono R. Atual. Cient. [online]. 2010, vol.22, n.2, pp.119-124. ISSN 0104-5687.  http://dx.doi.org/10.1590/S0104-56872010000200009.

BACKGROUND: the decrease of facial movements in peripheral facial paralysis and the resulting aesthetical sequels may have important emotional repercussions as a consequence to the functional deficit, and depending on the intensity of the clinical condition. Orofacial rehabilitation has as a purpose to favor the recovery of orofacial movements and to adequate and/or adapt orofacial functions and facial mimic. However, quantifying therapeutic results in an attempt to measure the muscle tonus is a challenge. Generally, the used forms of measurement are general and subjective. AIM: to propose the labial commissure angle as an anthropometric marker and to evaluate its reliability as an objective tool to evaluate the modification of the facial muscle tonus after rehabilitation. METHOD: participants of the study were 20 patients presenting peripheral facial paralysis - level IV. The study was conducted using images from the photographical documentation taken fifteen days to one year post-onset of facial paralysis. The angle was measured by tracings determined by pre-established anthropometric facial points, such as the line between the glabella and the gnation and the crossing with the left and right chelion points determining an angle manually measured with a protractor on the photography. RESULTS: The average Labial Commissure Angle before treatment was of 101.70 and after rehabilitation of 93.80 (standard deviation, SD = 4.3). The statistical analysis indicated a significant difference (p < 0.001). CONCLUSION: the results obtained suggest that the Labial Commissure Angle allows the objective evaluation of facial muscle tonus modification.

Palavras-chave : Facial Paralysis; Muscular Tonus; Face; Myofunctional Therapy.

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