Pedron, Irineu Gregnanin. “Improvement of Severe Gummy Smile by Botulinum Toxin Application and Gingivoplasty”. Journal of Nepalese Society of Periodontology and Oral Implantology 2, no. 2 (December 31, 2018): 67–69. Accessed December 4, 2024. https://nepjol.info/index.php/jnspoi/article/view/23617.