Hoang, K. and Nguyen, L. 2023. External root resorption in mandibular second molars associated with mesial, impacted third molars on CBCT images. Science and Technology Development Journal: Health Sciences. 4, 1 (Jun. 2023), 584-594. DOI:https://doi.org/https://doi.org/10.32508/stdjhs.v4i1.552.