Nigam, Mukta, Sanjeev Tyagi, Manali Tiwari, Medha Bhushan, Abhishek Choudhary, and Madhuri Gupta. 2015. “Esthetic Design”. Journal of Orofacial Research 5 (4): 130-33. https://mansapublishers.com/jofr/article/view/2064.