Awareness on periodontal aesthetic procedures among dental students in a private dental college in Chennai- A questionnaire based survey. Journal of Pharmaceutical Negative Results, [S. l.], p. 887–896, 2022. DOI: 10.47750/pnr.2022.13.S04.105. Disponível em: https://www.pnrjournal.com/index.php/home/article/view/1020.. Acesso em: 14 jun. 2026.