eng Oriental Scientific Publishing Company Biosciences Biotechnology Research Asia 0973-1245 2016-05-04 7 2 695 700 9046 article Essam Mattar 1 Lina Hammad 1 Asmaa Faden 2 Hesham Khalil 2 Department of Radiological Sciences, College of Applied Medical Sciences, King Saud University, Riyadh (Saudi Arabia) Department of Maxillofacial Surgery and Diagnostic Sciences, College of Dentistry, King Saud University, Riyadh (Saudi Arabia This study investigated the relationship of the maxillary sinus floor to the roots of posterior teeth imaged by panoramic radiography in Saudi patients living in Riyadh, Saudi Arabia. Panoramic radiographs of 60 subjects were analyzed. A total of 266 teeth in the left side and 277 teeth in right side were examined in this study. The closest root to the sinus was considered and classified according to a scale from 0 to 4. The results showed that the first and second molar teeth are in a very close relation to the maxillary sinus in these subjects. Although some reports showed that the reliability of panoramic radiographs is limited in showing the relationship of the teeth roots to the sinus, these radiographs are of a great help and could be used as a primary indicator for the relation of posterior teeth for general dentists who have no access to cone beam CT scan. https://www.biotech-asia.org/vol7no2/relation-of-maxillary-teeth-to-the-maxillary-sinus-in-normal-saudi-individuals-living-in-riyadh/ Maxillary sinus; molar teeth; panoramic