Assessment of temporomandibular dysfunction therapy progress based upon mandibular velocity measurement.

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Assessment of temporomandibular dysfunction therapy progress based upon mandibular velocity measurement.

Journal Title: Journal of Stomatology (Czasopismo Stomatologiczne) - Year 2012, Vol 65, Issue 3

Abstract

Introduction. Mandibular movement velocity is an individual parameter corresponding to muscles condition. Dynamic examination of muscles tension in stomatognathic system during opening/closing movement might be a good index, used in temporomandibular dysfunctions (TMD) diagnostics. Aim of the study. The aim of this study was to evaluate mandibular movement velocity during myorelaxation therapy of temporomandibular disorders. Material and method. 76 women (23.9±4.8 years old) were qualified for the study with diagnosed TMD (for 11.9±9.8 months on average). All patients fulfilled a questionnaire about their complaints. The treatment involved parafunctions control, active myorelaxation exercises and sublingual relaxation splint. K7 Myotronics device was used to measure maximal and average velocity of opening/closing movement and average velocity during returning of teeth into central occlusion. Measurements were retaken after 24±22, 74±45 and 118±42 days. The control group consisted of 36 women (19.8±1.7years old) without TMD symptoms. Statistical analysis was performed. Results. The study revealed an increase in maximal velocity during opening from 276.2±73 to 367±70mm/s and closing from 273.9±82 to 336±89mm/s; average velocity from 173±46 to 237±43mm/s during opening and from 179±48mm/s to 234±44mm/s during closing; final velocity from 58.8mm/s to 107.9mm/s (Friedman test, p&lt;0.05). The statistically significant results corre late with the clinical findings, questionnaire and the results obtained in the control group (Mann-Whitney test, p&lt;0.05). Conclusions. An evaluation of dynamic parameters (movement velocity) is an effective and reproducible method of TMD diagnostics. The measurements taken during the subsequent control visits allow to estimate the dynamics of myorelaxation process. An increase in opening/closing movement velocity correlates with a decrease in subjective complains.

Authors and Affiliations

Krzysztof Gawriołek, Paweł Piotrowski

Keywords

functional dysfunctions myorelaxation movement velocity

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EP ID EP57644
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