KALLURI, Yasasvi; CHAKRAVARTHY, Y.S.H.S; REDDY, D Bharath Simha; NIMMALA, Sri Ram Naidu; PABBINEEDI, Sai Satya Sri; GATHRAM, Prathyusha. Corroborating of Depression, Anxiety, and Stress Scale-21 items (DASS-21) and the Perceived Stress Scale-10 items (PSS-10) and Psychological Features in patients with periodontitis: a questionnaire study. International Journal of Dental Materials, [S. l.], v. 6, n. 3, p. 58–63, 2024. DOI: 10.37983/IJDM.2024.6302. Disponível em: https://ijdm.co.in/index.php/dental-materials/article/view/157. Acesso em: 9 oct. 2025.