Jawad, D. K. J., D. R. A. Aziz, and D. M. K. Gholam. “Root Trunk Height of Maxillary and Mandibular Permanent First Molars in Iraqis (a Pilot Study)”. Mustansiria Dental Journal, vol. 5, no. 1, Mar. 2018, pp. 26-30, doi:10.32828/mdj.v5i1.497.