Inclusion criteria -the inclusion criteria for participating in the study were: age over 18 years; continuous xerostomia for over three months; and/or altered sialometry findings at baseline (salivary flow < 0.1 mL/min).~Exclusion criteria. : xerostomia as secondary to radiotherapy; patients with decompensated systemic disorders or cognitive problems~The 60 individuals will be randomized in 2 groups: Group A (30 individuals submitted to treatment with a PBM) and Group B (30 individuals submitted to simulated PBM). A total of 60 patients with xerostomia were enrolled in the study and cited once a week for a period of 6 weeks treatment with diode laser (810nm, 6J/cm2) or sham treatment (according to the group).
Hyposalivation is a condition represented by a reduced salivary flow and may include symptoms such as mouth dryness (xerostomia), pain, loss of taste,dysphagia, and dysphonia, all of which greatly affect an individual's quality of life.~The aim of the present study was analized the effects of low-level light therapy irradiation (photobiomodulation PBM) on salivary gland function in patients with hyposalivation