TMJ Disordes Interferences During Speech – Amplitude and Velocity of Mandibular Movements’ Analysis using BioEGN

Esther Mandelbaum Gonçalves BIANCHINI, Stella Spalluto de Barros ROSSI, Guiovaldo PAIVA, Mário Kaissar NASR, Alexandra Faria PAIVA

One of the signs of temporomandibular disorders is the movement limitation, but it seems difficult to determine the existence of a normal pattern without some specific data that directs the diagnosis. The purpose of this study is to determine the influence of TMJ problems in speech production, referring to amplitude and velocity of mandibular movement. This study presents some data about opening movement according to the frontal plane and its velocity during speech in a group of 64 adults, 38 wit TMJ problems and 26 asymptomatic volunteers. For our study the BioEGN – BioPak system, Bio-Research Associates, Inc., Milwaulkee, WI, USA was used. The results showed that the average of opening movement during speech in the symptomatic group is 9,3mm (+3,0) and in the asymptomatic group is 10,1mm (+ 3,2). Relative to velocity we found the same results for both groups: the average is 75,6 mm/seg. (+25,3) when opening and 76,2 mm/seg. (+ 28,7) when closing, showing that TMJ disorders does not interfere in velocity. Our results also showed that the amplitude of opening movement and the velocity are directly related. The kinesiograph provides help in the diagnosis of the functional patterns during speech.

Keywords: Speech. Miofuncional disorders. Temporomandibular joint. Temporomandibular disorders. Kinesiograph.

Saturday, December 28, 2024 23:25