Ríos-Erazo, Matías, and Socorro Borges-Yañez. “Psychological Factors and His Influence in the Oral Health of Older People: A Narrative Review.”. Journal of Oral Research 5, no. 1 (February 4, 2016): 43-49. Accessed April 16, 2026. https://www.joralres.com/index.php/JOralRes/article/view/joralres.2016.008.