Mishra, Shalini, Mukesh Kumar, Manish Goyal, and Ashish Kushwah. “Determination of Optimal Loading Conditions Using Lever Arm and Mini- Implant System for En-Masse Retraction in Lingual Orthodontics – A FEM Study”. UNIVERSITY JOURNAL OF DENTAL SCIENCES 7, no. 1 (March 5, 2021). Accessed April 26, 2024. https://ujds.in/index.php/ujds/article/view/320.