Ozyemisci , Nuran, and Meral Kurt. “Economical and Easy Methods of Smoke Stain Removal from Maxillofacial Prostheses”. Annals of Medical Research 29, no. 4 (April 29, 2022): 363–368. Accessed May 5, 2024. http://www.annalsmedres.org/index.php/aomr/article/view/4093.