This study assesses the efficacy of photobiomodulation therapy (830 nm) for myalgia treatment of masticatory muscles. Sixty patients with muscular myalgia were selected and randomly allocated into 2 groups (n=30): Group A comprised patients given a placebo (control), and Group B consisted of those undergoing photobiomodulation therapy (PBMT). PBMT and placebo were applied bilaterally to specific points on the masseter and temporal muscles. Referred pain elicited by palpation and maximum mouth opening were measured before (EV1) and after (EV2) the treatments. The data were analyzed using statistical tests, considering a significance level of 5%. No significant differences in range were observed for active or passive mouth opening (p ≥ 0.05). Comparing the final outcomes (EV1-EV2) of both treatments, statistical significance was verified for total pain in the right masseter muscle (p = 0.001) and total pain (p = 0.005). In EV2, significant differences in pain reported with palpation were found between Groups A and B for the following: left posterior temporal muscle (p = 0.025), left superior masseter muscle (p = 0.036), inferior masseter muscle (p = 0.021), total pain (left side) (p = 0.009), total masseter muscle (left side) (p = 0.014), total temporal (left side) (p = 0.024), and total pain (p = 0.035). We concluded that PBMT (830 nm) reduces pain in algic points, but does not influence the extent of mouth opening in patients with myalgia.

Oral alterations in patients diagnosed with eating disorders (ED) are reported in the literature, but few articles demonstrate these changes in a specific population. This study aims to summarize the findings of 26 patients with ED in a Brazilian dental clinic, through analyzing the body mass index and oral conditions (decayed, missing and filled teeth—DMFT, dental wear, salivary flux, xerostomia, oral hygiene—OHI‐S, oral lesions, and the prevalence of candidiasis), in order to facilitate recognition and enable accurate diagnosis for the general dentist. Probably, the premature diagnosis of ED resulted in lower DMFT and oral lesions.

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