Ximinis Evangelos, Tortopidis Dimitriosd
Aristotle University of Thessaloniki, School of Dentistry, Department of Prosthodontics, Thessaloniki, Greece
Summary
Background/Aim: To investigate the electromyographic (EMG) activity changes of jaw-closing muscles in patients with different occlusion schemes and posterior edentulous span, after the placement of teethsupported fixed partial denture (FPD). Material and Methods: The study sample consisted of 20 patients (10 men and 10 women, the mean age being 50 years) with a posterior edentulous area that includes two missing premolars or one premolar and one molar. The participants were divided into two groups with different occlusion schemes: canine-guided occlusion (CGO) and group function occlusion (GFO). The metal-ceramic FPD were fabricated according to the clinic-standardized protocol. EMG activities of masseter and anterior temporalis patients’ muscles were recorded with bipolar surface electrodes during maximal voluntary clenching. EMG evaluation was repeated twice: (T1) before the fabrication of FPD (T2) after eight weeks of FPD cementation and intraoral functioning of restoration. The data were subjected to Analysis of Variance-ANOVA within the methodological framework of the General Linear Models with Repeated Measures. The Bonferroni test was used to compare multiple mean measures. Statistical analysis was conducted with SPSS ver. 11.5. The level of significance was predefined at a=0.05. Results: Group 1 with CGO presented significantly higher levels of masseter (mean maximum EMG average before 79.36μV and 139.68μV after) and temporalis (mean maximum EMG average before 79.07μV and 149.37μV after) EMG activity after FPD placement. Group 2 with GFO also showed significantly higher levels of masseter (mean maximum EMG average before 61.57μV and 165.30μV after) and temporalis (mean maximum EMG average before 56.94μV and 133.08μV after) EMG activity after the prosthetic restoration. Conclusions: It may be concluded that fixed prosthetic restoration, in both patients with canine-guided and group function occlusion, results in increased EMG jaw-muscle activity.
Keywords: electromyography; masseter; temporalis anterior; occlusion schemes; fixed prosthetic restoration
Reference
*** (2005) The glossary of prosthodontic terms. J Prosthet Dent, 94(1):10-92
Abduo, J., Tennant, M. (2015) Impact of lateral occlusion schemes: A systematic review. Journal of Prosthetic Dentistry, 114(2): 193-204
Ahlberg, K., Savolainen, A., Paju, S., Hublin, C., Partinen, M., Knnen, M., Ahlberg, J. (2008) Bruxism and sleep efficiency measured at home with wireless devices. Journal of Oral Rehabilitation, 35(8): 567-571
Akören, A.C., Karaačaçliočlu, L. (1995) Comparison of the electromyographic activity of individuals with canine guidance and group function occlusion. Journal of Oral Rehabilitation, 22(1): 73-77
Bakke, M. (1993) Mandibular elevator muscles: Physiology, action, and effect of dental occlusion. Scand J Dent Res, 101(5): 314-31
Bakke, M., Michler, L., Möller, E. (1992) Occlusal control of mandibular elevator muscles. European Journal of Oral Sciences, 100(5): 284-291
Basmajian, J.V. (1978) Biofeedback in medical practice. Can Med Assoc J, 119: 8-10
Bates, J.F., Stafford, G.D., Harrison, A. (1976) Masticatory function – a review of the literature. III. Masticatory performance and efficiency. J Oral Rehabil, 3(1): 57-67
Belser, U.C., Hannam, A.G. (1985) The influence of altered working-side occlusal guidance on masticatory muscles and related jaw movement. Journal of Prosthetic Dentistry, 53(3): 406-413
Bersani, E., Regalo, S. C. H., Siéssere, S., Santos, C. M., Chimello, D. T., de Oliveira, R. H., Semprini, M. (2011) Implant-supported prosthesis following Brånemark protocol on electromyography of masticatory muscles. Journal of Oral Rehabilitation, 38(9): 668-673
Castroflorio, T., Bracco, P., Farina, D. (2008) Surface electromyography in the assessment of jaw elevator muscles. Journal of Oral Rehabilitation, 35(8): 638-645
Dahlstrom, L. (1989) Electromyographic studies of craniomandibular disorders: A review of the literature. J Oral Rehabil, 16(1): 1-20
Ferrario, V. F., Tartaglia, G. M., Galletta, A., Grassi, G. P., Sforza, C. (2006) The influence of occlusion on jaw and neck muscle activity: a surface EMG study in healthy young adults. Journal of Oral Rehabilitation, 33(5): 341-348
Ferrario, V.F., Sforza, C. (1996) Coordinated electromyographic activity of the human masseter and temporalis anterior muscles during mastication. European Journal of Oral Sciences, 104(5-6): 511-517
Ferrario, V.F., Serrao, G., Dellavia, C., Caruso, E., Sforza, C. (2002) Relationship Between the Number of Occlusal Contacts and Masticatory Muscle Activity in Healthy Young Adults. Cranio®, 20(2): 91-98
Forrester, S. E., Presswood, R. G., Toy, A. C., Pain, M. T. G. (2011) Occlusal measurement method can affect SEMG activity during occlusion. Journal of Oral Rehabilitation, 38(9): 655-660
Georgiakaki, I., Tortopidis, D., Garefis, P., Kiliaridis, S. (2007) Ultrasonographic thickness and electromyographic activity of masseter muscle of human females. Journal of Oral Rehabilitation, 34(2): 121-128
Goodacre, C.J., Campagani, W.V., Aqilino, S.A. (2001) Tooth preparations for complete crowns: An art form based on scientific principles. Journal of Prosthetic Dentistry, 85(4): 363
Haraldson, T., Carlsson, G.E., Ingervall, B. (1979) Functional state, bite force and postural muscle activity in patients with osseointegrated oral implant bridges. Acta Odontol Scand, 37(4): 195-206
Hugger, A., Hugger, S., Schindler, H.J. (2008) Surface electromyography of the masticatory muscles for application in dental practice. Current evidence and future developments. Int J Comput Dent, 11: 81-106
Ikebe, K., Matsuda, K., Kagawa, R., Enoki, K., Okada, T., Yoshida, M., Maeda, Y. (2012) Masticatory performance in older subjects with varying degrees of tooth loss. Journal of Dentistry, 40(1): 71-76
Jacobs, R., van Steenberghe, D. (1993) Masseter muscle fatigue during sustained clenching in subjects with complete dentures, implant-supported prostheses, and natural teeth. Journal of Prosthetic Dentistry, 69(3): 305-313
Kerstein, R.B. (2004) Combining Technologies: A Computerized Occlusal Analysis System Synchronized with a Computerized Electromyography System. Cranio®, 22(2): 96-109
Lavigne, G., Kim, J. S., Valiquette, C., Lund, J. P. (1987) Evidence that periodontal pressoreceptors provide positive feedback to jaw closing muscles during mastication. Journal of Neurophysiology, 58(2): 342-358
Luís, B.A., de Oliveira, M.M., Maria, B.R.da S.A., Antonio, M.R.da S.M. (2009) Electromyographic Evaluation of Neuromuscular Coordination of Subject After Orthodontic Intervention. Cranio®, 27(3): 152-158
Lund, J.P., Widmer, C.G. (1989) Evaluation of the use of surface electromyography in the diagnosis, documentation, and treatment of dental patients. J Craniomandib Disord, 3(3): 125-37
MacDonald, J.W.C., Hannam, A.G. (1984) Relationship between occlusal contacts and jaw-closing muscle activity during tooth clenching: Part I. Journal of Prosthetic Dentistry, 52(5): 718-729
Manns, A., Miralles, R., Palazzi, C. (1979) EMG, bite force, and elongation of the masseter muscle under isometric voluntary contractions and variations of vertical dimension. J Prosthet Dent, 42(6): 674-82
Mehr, K. (2013) Surface electromyography in orthodontics – a literature review. Medical Science Monitor, 19: 416-423
Okano, N., Baba, K., Igarashi, Y. (2007) Influence of altered occlusal guidance on masticatory muscle activity during clenching. Journal of Oral Rehabilitation, 34(9): 679-684
Okano, N., Baba, K., Akishige, S., Ohyama, T. (2002) The influence of altered occlusal guidance on condylar displacement. Journal of Oral Rehabilitation, 29(11): 1091-1098
Ringqvist, M. (1974) Fiber types in human masticatory muscles. Relation to function. European Journal of Oral Sciences, 82(4): 333-355
Rosenstiel, S.F., Land, M.F., Fujimoto, J. (2001) Contemporary fixed prosthodontics. St. Louis: Mosby
Roy, S. H., de Luca, C. J., Schneider, J. (1986) Effects of electrode location on myoelectric conduction velocity and median frequency estimates. Journal of Applied Physiology, 61(4): 1510-1517
Sforza, C., Rosati, R., de Menezes, M., Musto, F., Toma, M. (2011) EMG analysis of trapezius and masticatory muscles: experimental protocol and data reproducibility. Journal of Oral Rehabilitation, 38(9): 648-654
Shillingburg, H.T., i dr. (2012) Fundamentals of fixed prosthodontics. Chichago: Quintessence Publishing, pp: 5-150; 4th Edition
Shupe, R.J., Mohamed, S.E., Christensen, L.V., Finger, I.M., Weinberg, R. (1984) Effects of occlusal guidance on jaw muscle activity. Journal of Prosthetic Dentistry, 51(6): 811-818
Suvinen, T. I., Malmberg, J., Forster, C., Kemppainen, P. (2009) Postural and dynamic masseter and anterior temporalis muscle EMG repeatability in serial assessments. Journal of Oral Rehabilitation, 36(11): 814-820
Suvinen, T. I., Kemppainen, P. (2007) Review of clinical EMG studies related to muscle and occlusal factors in healthy and TMD subjects. Journal of Oral Rehabilitation, 34(9): 631-644
Svensson, P., Graven-Nielsen, T. (2001) Craniofacial muscle pain: review of mechanisms and clinical manifestations. J Orofac Pain, 15: 117-145
Tartaglia, G.M., Testori, T., Pallavera, A., Marelli, B., Sforza, C. (2008) Electromyographic analysis of masticatory and neck muscles in subjects with natural dentition, teeth-supported and implant-supported prostheses. Clinical Oral Implants Research, 19(10): 1081-1088
Tortopidis, D., Lyons, M. F., Baxendale, R. H. (1999) Bite force, endurance and masseter muscle fatigue in healthy edentulous subjects and those with TMD 1. Journal of Oral Rehabilitation, 26(4): 321-328
van Eijden, T.M. G. J., Raadsheer, M.C. (1992) Heterogeneity of fiber and sarcomere length in the human masseter muscle. Anatomical Record, 232(1): 78-84
Visser, A., Kroon, G.W., Naeije, M., Hansson, T.L. (1995) EMG differences between weak and strong myogenous CMD patients and healthy controls. J Oral Rehabil, 22(6): 429-34
von der Gracht, I., Derks, A., Haselhuhn, K., Wolfart, S. (2016) EMG correlations of edentulous patients with implant overdentures and fixed dental prostheses compared to conventional complete dentures and dentates: a systematic review and meta-analysis. Clinical Oral Implants Research, 28(7): 765-773
Walker, S.M., Schrodt, G. R. (1974) I segment lengths and thin filament periods in skeletal muscle fibers of the rhesus monkey and the human. Anatomical Record, 178(1): 63-81
Wood, W.W., Tobias, D.L. (1984) EMG response to alteration of tooth contacts on occlusal splints during maximal clenching. Journal of Prosthetic Dentistry, 51(3): 394-396
Yemm, R. (1977) The orderly recruitment of motor units of the masseter and temporal muscles during voluntary isometric contraction in man. Journal of Physiology, 265(1): 163-174
Balkan Journal of Dental Medicine, 2018, vol. 22, br. 3, str. 157-162