Alex, A., Shashidhar, K., M N, K., Nayak, U.S.K., Menta, S. and A, A. 2022. Comparative analysis of mandibular changes after orthodontic treatment with and without extraction of four premolars. Acta Marisiensis - Seria Medica. 68, 2 (Jun. 2022). DOI:https://doi.org/10.2478/amma-2022-0012.