Raghuveer H, Hemanth M, Rani M, Hegde C, Vedavathi B, Chaithra D.
An Analysis of the Stress Induced in the Periodontal Ligament during Extrusion and Rotation Movements: A Finite Element Method Linear Study Part I. 
J Contemp Dent Pract
2015;
16
(9):740-743.