Chumsuphanwaree, Nattha. “Surgical Removal of the Displaced Upper Molar Root from the Maxillary Sinus Using Bone Lid Technique and Surgical Closure of Oroantral Communication: A Case Report”. Chiang Mai Dental Journal 41, no. 3 (December 9, 2020): 123–133. Accessed May 6, 2024. https://he01.tci-thaijo.org/index.php/cmdj/article/view/246402.