Relationship among perceived stress, xerostomia, and salivary flow rate in patients visiting a saliva clinic

Objective This aimed to assess the potential role of chronic stress in saliva secretion, xerostomia, and oral health in a population attending a saliva clinic. Materials and methods Data of 114 patients who met the inclusion criteria and completed all questionnaires were analyzed in this study. Participants completed several validated questionnaires, including the Perceived Stress Scale, the Oral Health Impact Profile (OHIP-14), Xerostomia Inventory (XI), and Bother xerostomia Index (BI). Subsequently, the unstimulated, chewing-stimulated, and citric acid-stimulated saliva secretion rates were determined gravimetrically. Data were evaluated using Spearman’s correlation analysis and the Mann–Whitney U test. Results A significant correlation was observed between perceived stress and XI score ( r = 0.312, p = 0.001), as well as between perceived stress and BI score ( r = 0.334, p = 0.001). Stress levels also were significantly associated with OHIP-14 scores ( r = 0.420, p