Mishra S, Kumar M, Goyal M, Kushwah A. Determination of Optimal Loading Conditions Using Lever Arm and Mini- Implant System for En-masse Retraction in Lingual Orthodontics – A FEM Study. Univ J Dent Sciences [Internet]. 2021Mar.5 [cited 2024Nov.22];7(1). Available from: https://ujds.in/index.php/ujds/article/view/320