POMC and burning mouth syndrome: Cortisol (AUC = 0.980, 95% CI: 0.959, 1.000), and ACTH levels above the mean (AUC = 0.625, 95% CI: 0.530, 0.720), as well as a cortisol/DHEA ratio above the mean (AUC = 0.779, 95% CI: 0.701, 0.856) were found to be significant predictors of psychological stress in patients with BMS.