Avaliação do efeito da fotobiomodulação no desconforto orofacial causado em procedimentos odontológicos- ensaio clínico, controlado e randomizado

Abstract

As pain is na importante symptom, and even this complex and subjective process not treated becomes na economic and health burden.Orofacial disturbies when encompasses, painful conditions and may be presente in clinical procedures. Pain is an important symptom, a complex and subjective process that when left untreated can create an economic and health burden. Orofacial discomfort encompasses painful conditions and may be present in clinical procedures. The aim of this study was to evaluate the effect of photobiomodulation on orofacial discomfort caused in dental procedures.The methodology was applied to 16 volunteers (not obtained by the sample calculation in p <0.05) between 18 and 34 years old. The same patient at different times participated in the research, being in one moment participant on the laser group and in another moment placebo group. The volunteers were randomized and allocated into laser (n = 16), placebo (n = 16) groups, and the volunteers were their own control group. The simulation of the dental procedure occurred with a mouth opener during 50 minutes. Subjects were assessed every 10 min by catastrophic thinking scales (EPCD), muscle tiredness scale (BORG), visual analogue pain scale (VAS), use of electromyography, bilateral thermographic photos. The laser applied (786 nm wavelength, 9 J per point, 100mw power, irradiance of 2.493 w / cm², for 90 sec per point / 3 points in masseter, 1 in temporal). Results: The low laser power presented positive and statistically significant difference (p <0.05) for pain and tiredness at all the times. The laser acts on stressed tissue but this study showed the positive result also in previous application. The electromyography showed no statistically significant difference, in the period of 50 min, no lesion or fact fatigue positive fact for dental clinic. The thermographic camera presented na increase of the temperature in the laser group in 40 and 50 min time, proving the peripheral circulation’s increaseness. Conclusion: Low power laser can be used to minimize orofacial discomfort in dental patients who remained open-mouthed for 50 min.