STUDY OF THE PROCESS OF ADAPTATION TO NON-REMOVABLE ORTHOPEDIC STRUCTURES WITH SUPPORT ON DETAILED IMPLANTS
DOI:
https://doi.org/10.35220/2523-420X/2026.2.14Keywords:
superficial myography, dental implants, indices, adaptation.Abstract
Occlusive changes that occur after the installation of orthopedic structures based on dental implants change the balance in the work of the opposite masticatory and temporal muscles. Purpose of our work. To study the neuromuscular response of masticatory muscles (Musculus Masseter, Tempralis Anterior) to the installation of non-removable orthopedic constructs based on dental implants for the treatment of partial secondary adentia over time (3 months). Materials and methods of research. We examined 15 patients (11 women and 4 men) aged 30 to 55 years. All were made of non-removable orthopedic structures with support on dental implants in the lateral parts of the jaws (11 on the lower jaw and 4 on the upper jaw). The defects were one-sided. Examinations were conducted at the time of delivery of the orthopedic structure based on dental implants and 3 months after. Musculus Masseter, Tempralis Anterior muscle activity was recorded using the Teethan® wireless EMG system. The following indicators were studied: ROS, BAR, ASIM, TORS, IMP. Results of the study. The ROC coefficient of the masticatory and temporal muscles, the BAR index, the ASIM index, the TORS index, the IMP index at the time of establishing the orthopedic structure indicated the absence of the study muscles in synchronization, which is inherent in unilateral chewing. After 3 months, these indicators approached the normal range. Conclusions. After fixing the non-removable orthopedic structure with support on detailed implants, replacing the unilateral defects of the dentitions in the lateral parts of the jaws, patients retain the stereotype of chewing, which manifests itself in the form of an imbalance in the activity of a pair of chewing and anterior temporal muscles, which is inherent in unilateral chewing. Index indicators: POC, BAR, ASIM, TOPS, IMP significantly differ from the normal range (p ˂ 0.001). After 3 months, after replacing the unilateral defect of the dentition with a non-removable orthopedic structure based on dental implants, the activity of a pair of anterior temporal and masticatory muscles approaches a balanced contralateral activity.
References
Campillo, B., Martín, C., Palma, J.C., Fuentes, A.D., & Alarcón, J.A. (2017). Electromyographic activity of the jaw muscles and mandibular kinematics in young adults with theoretically ideal dental occlusion: Reference values. Med Oral Patol Oral Cir Bucal, 22(3), e383-e391. DOI: 10.4317/medoral.21631.
De Felício, C.M., Ferreira, C.L., Medeiros, A.P., Rodrigues, DaSilva, M.A., Tartaglia, G.M., & Sforza, C. (2012). Electromyographic indices, orofacial myofunctional status and temporomandibular disorders severity: A correlation study. J Electromyogr Kinesiol, 22(2), 266-72. DOI: 10.1016/j.jelekin.2011.11.013.
Limonta, E., Arienti, C., Rampichini, S., Venturelli, M., Cè, E., Veicsteinas, A., & Esposito, F. (2018). Effects of Two Different Self-Adapted Occlusal Splints on Electromyographic and Force Parameters During Elbow Flexors Isometric Contraction. J Strength Cond Res, 32(1), 230-236. DOI: 10.1519/JSC.0000000000002178.
Marini, I., Alessandri, Bonetti, G., Bortolotti, F., Bartolucci, M.L., Gatto, M.R., Michelotti, A. (2015). Effects of experimental insoles on body posture, mandibular kinematics and masticatory muscles activity. A pilot study in healthy volunteers. J Electromyogr Kinesiol, 25(3), 531-9. DOI: 10.1016/j.jelekin.2015.02.001.
Manfredini, D., Lombardo, L., & Sicilian,i G. (2017). Temporomandibular disorders and dental occlusion. A systematic review of association studies: end of an era? J Oral Rehabil, 44(11), 908-923. DOI: 10.1111/joor.12531
Karakis, Duygu, Bagkur, & Meral, Toksoy (2021). Burcu Comparison of Simultaneously Recorded Computerized Occlusal Analysis and Surface Electromyographic Activity of Masticatory Muscles Between Patients with Unilateral TMD and Healthy Controls. The International Journal of Prosthodontics, 5, 554-559. DOI: 10.11607/IJP.6935
Manfredini, D., Lombardo, L., & Siciliani, G. (2017). Temporomandibular disorders and dental occlusion. A systematic review of association studies: end of an era? J Oral Rehabil, 44(11), 908-923. DOI: 10.1111/joor.12531.
McDonald, E.A. The fundamentals of occlusion and jaw function. Inside Dentistry.2016. 12(11), 35-41.
Peck, C.C. (2016). Biomechanics of occlusion-- implications for oral rehabilitation. J Oral Rehabil, 43(3), 205-14. DOI: 10.1111/joor.12345
Merin, R.L. (2014). Repair of peri-implant bone loss after occlusal adjustment: a case report. J Am Dent Assoc, 145(10), 1058-62. DOI: 10.14219/jada.2014.65.
Fu, J.H., Hsu, Y.T., & Wang, H.L. (2012). Identifying occlusal overload and how to deal with it to avoid marginal bone loss around implants. Eur J Oral Implantol, 5, S91-103. PMID: 22834398
Naert, I., Duyck, J., & Vandamme, K. (2012). Occlusal overload and bone/implant loss. Clin Oral Implants Res,23, 6, 95-107. DOI: 10.1111/j.1600-0501 .2012.02550.x.
Stilwell, C. (2024). Occlusal considerations in maintaining health of implants and their restorations. Br Dent J, 236(10), 773-779. DOI: 10.1038/ s41415-024-7407-7.
