QIAM UD DIN. CHALLENGES IN DENTISTRY. JOURNAL OF KHYBER COLLEGE OF DENTISTRY, [S. l.], v. 2, n. 2, p. 49, 2012. DOI: 10.33279/jkcd.v2i2.490. Disponível em: https://www.journalofkcd.com/kcd/article/view/490. Acesso em: 4 jun. 2026.