CONCLUSION
Based on the protocol used in this clinical case, PBM was effective in
treating the symptoms of medicinal xerostomia, increasing the quality of
life of the patient undergoing psychiatric treatment using the
medication Fluoxetine. Although the field is still under construction,
evidence from clinical experiences can build an important track record
of applications. However, further studies in the form of randomized
controlled clinical trials with adequate samples are needed to confirm
the findings of this case report, and in vitro studies are needed to
evaluate the exact mechanism involved in PBM and salivary glands.