The importance of transcutaneous electrical neural stimulation in determining physiological occlusion for prosthetic treatment

Abstract

Department of Prosthodontics „Ilarion Postolachi”, SUMPh „ Nicolae Testemiţanu”, Congresul consacrat aniversării a 75-a de la fondarea Universității de Stat de Medicină și Farmacie „Nicolae Testemițanu” din Republica Moldova, Ziua internațională a științei pentru pace și dezvoltareIntroduction. Physiologic occlusion can be considered one of the determinant factors of the stomatognathic system equilibrium. The craniomandibular dysfunction (CMD) may be induced by occlusal disorders. The achievement of a physiologic occlusion can be considered an important aspect in the succesful treatment of the CMD. Purpose. To evaluate the specific features of obtaining physiologic therapeutic occlusion by transcutaneous electrical neural stimulation. Material and methods. The study included 25 patients (17 females and 8 males) aged 37-52 years. Inclusion criteria were: the presence of occlusal disorders due to pathological dental wear, multiple coronary dental lesions, partial edentation associated with symptoms and clinical signs of CMD. The J5 electronic system - myomonitor was used for transcutaneous electrical neural stimulation. Results Due to the Transcutaneous Electrical Neural Stimulation (TENS) of the V, VII and XI cranial nerves, the masticatory, mimic, cervical and scapular muscles were relaxed, thus a physiologic, myocentric relation of the mandible to the maxilla was obtained. The electronic system used - Myomonitor J5, induced symmetrical electrical pulses with a frequency of 1.5 Hz (one vibration every 1.5 seconds) and an amplitude of up to 10mkV, which moves the mandible on a neuromuscular trajectory. Stimulation, by involuntary isotonic contractions of the muscles, had an average duration of 60 minutes. Conclusions. Achieving the physiologic occlusion through transcutaneous electrical neurostimulation is an accurate and objective method, which is based on the physiology of the stomatognathic and neuromuscular system of the whole body, being the basis of the correct prosthetic treatment and creates proper conditions for prophylaxis and treatment of CMD