Cone Beam Computed Tomograpphy Study of Intra-Sinus Calcifications Summary- Introduction: The intra-sinus calcifications are quite rare clinical entities and may be responsible for some sinus pathologies. The purpose of our work is to describe the intra-sinus calcifications, to identify their features and also the various sinus lesions in relation. Material and methods: In this retrospective descriptive study, we reviewed radiological images obtained from cone beam acquisitions at a dental radiology center. The following variables were evaluated: the number, the shape, the location, the dimension, the nature and the localization of intra-sinus calcifications. Results: 300 cone beam images were examined. 3% of cases of intra-sinus calcifications were found. The prevalence is as follows: Women accounted for 77.8% of the sample compared to 22.2% of men. A single calcification was found in 22.2% of cases, two calcifications in 44.4% of cases, and more than two calcifications in 33.4% of cases. The calcifications are located at the peripheral level in 88.9% of cases and at the central level in 11.1% of cases. The survey revealed that 35.7% of the calcifications are measuring less than 1 mm. 14.3% between 1 and 2 mm, 21.4% between 2 and 5 mm and 28.6% greater than 5 mm. Keywords: maxillary sinus, calcifications, cone beam computed tomography. GJMR-J Classification: NLMC Code: WV 340 ConeBeamComputedTomograpphyStudyofIntraSinusCalcifications Strictly as per the compliance and regulations of: Type: Double Blind Peer Reviewed International Research Journal Publisher: Global Journals Inc. (USA) Online ISSN: 2249-4618 & Print ISSN: 0975-5888 Global Journal of Medical Research: J Dentistry & Otolaryngology Volume 17 Issue 1 Version 1.0 Year 2017 By Amine Khadija, Yassine Lahlou, Siham Chemlali, Jamila Kissa, Amina Gharibi & Mohammed Baite © 2017. Amine Khadija, Yassine Lahlou, Siham Chemlali, Jamila Kissa, Amina Gharibi & Mohammed Baite. This is a research/ review paper, distributed under the terms of the Creative Commons Attribution-Noncommercial 3.0 Unported License http://creativecommons.org/licenses/by-nc/3.0/), permitting all non-commercial use, distribution, and reproduction in any medium, provided the original work is properly cited.