Electromyographic Evaluation During Masticatory Function, In Patients With Temporomandibular Disorders Following Interocclusal Appliance Treatment

The aim of this study was to evaluate the electromyographic activity during masticatory function, in patients with stomatognathic system dysfunctions, treated with interocclusal splints. Electromyography was carried out through a computer diagnostic system K6 - 1 DIAGNOSTIC SYSTEM (Myo-Tronics, Inc.; Tukwila, WA; USA). Study sample involved 20 individuals, age 18-53 years, both genders. Electromyographic activity of the masticatory muscles (masseter and anterior temporalis) was measured before and 90, 120, and 150 days after treatment with interocclusal splints, which were modified at days 90 (in canine guidance) and 120 (in group function). Data were statistically analyzed through a simple linear regression model. There was no statistically significant difference (p > 0.05) among the 3 periods assessed. Bilateral equilibrium of electromyographic activity was observed for the masseter and anterior temporalis muscles during the treatment.5013338ABEKURA, H., KOTANI, H., TOKUYAMA, H., HAMADA, T., Asymmetry of masticatory muscle activity during intercuspal maximal clenching in healthy subjects and subjects with stomatognathic dysfunction syndrome (1995) J Oral Rehabil, 22 (9), pp. 699-704AKOREN, A.C., KARAAGACLIOGLU, L., Comparison of the electromyographic activity of individuals with canine guidance and group function occlusion (1995) J Oral Rehabil, 22 (1), pp. 73-77BORROMEO, G.L., SUVINEN, T.I., READ, P.C., A comparison of the effects of group function and canine interocclusal device on masseter muscle eletromyographic activity in normal subjects (1995) J. Prosthet. Dent, 74 (2), pp. 174-180CHANDU, A., SUVINEN, T.I., READE, P.C., BORROMEO, G.L., The effect of an interocclusal appliance on bite force and masseter electromyography in asymptomatic subjects and patients with temporomandibular pain and dysfunction (2004) J Oral Rehabil, 31 (6), pp. 530-537CLARK, G.T., BEEMSTERBOER, P.L., SOLBERG, W.K., RUGH, J.D., Nocturnal electromyographic evaluation of myofascial pain dysfunction in patients undergoing occlusal splint therapy (1979) J Am Dent Assoc, 99 (4), pp. 607-611CLAYTON, J.A., Oclusion and Prosthodontics (1995) Dent. Clin. North Am, 39 (2), pp. 313-333DAHLSTROM, L., HARALDSON, T., Bite plates and stabilization splints in mandibular dysfunction. A clinical and electromyographic comparison (1989) Acta Odontol Scand, 43 (2), pp. 109-114DIMITROULIS, G., DOLWICK, M.F., GREMILLION, H.A., Temporomandibular disorders. 1. Clinical evaluation (1995) Aust Dent J, 40 (5), pp. 301-305KLASSER, G.D., OKESON, J.P., The clinical usefulness of surface electromyography in the diagnosis and treatment of temporomandibular disorders (2006) J Am Dent Assoc, 137 (6), pp. 763-771. , ReviewKURITA, H., IKEDA, K., KURASHINA, K., Evaluation of the effect of a stabilization splint on occlusal force in patients with masticatory muscle disorders (2000) J Oral Rehabil, 27 (5), pp. 79-82LANDULPHO, A.B., SILVA, W.A., SILVA, F.A., VITTI, M., Electromyographic evaluation of masseter and anterior temporalis muscles in patients with temporomandibular disorders following interocclusal appliance treatment (2004) J Oral Rehabil, 31 (2), pp. 95-98LANDUPHO, A.B., SILVA, W.B., SILVA, F.A., VITTI, M., The effect of the occlusal splints on the tratament of temporomandibular disorders: A computerized eletromyographic study of masseter and anterior temporalis muscles (2002) Eletromyogr Clinical Neurophysiol, 42 (3), pp. 187-191MANNS, A., CHAN, C., MIRALLES, R., Influence of group function and canine guidance on electromyographic activity of elevator muscles (1987) J Prosthet Dent, 57 (4), pp. 494-501SHUPE, R.J., MOHAMED, S.E., CHRISTENSEN, L.V., FINGER, I.M., WEINBERG, R., Effects of occlusal guidance on jaw muscle activity (1984) J Prosthet Dent, 51 (6), pp. 811-818VITTI, M., BASMAJIAN, J.V., Electromyographic investigation of procerus and frontalis muscles (1976) Electromyogr Clin Neurophysiol, 16 (2-3), pp. 227-236VITTI, M., Electromyographic analysis of the musculus temporalis in basic movements of the jaw (1971) Electromyography, 3 (4), pp. 389-403WOOD, G.N., Centric relation and the treatment position in rehabilitating occlusions: A physiologic approach. Part II: the treatment position (1988) J Prosthet Dent, 60 (1), pp. 15-18ZUCCOLOTTO, M.C., VITTI, M., NÓBILO, K.A., REGALO, S.C., SIÉSSERE, S., BATAGLION, C., Electromyographic evaluation of masseter and anterior temporalis muscles in rest position of edentulous patients with temporomandibular disorders, before and after using complete dentures with sliding plates (2007) Gerodontology, 24 (2), pp. 105-11