CBCT assessment of relationship between maxillary sinus floor and maxillary posterior teeth: A retrospective study

Introduction: Aim of the study was to assess the relationship between maxillary sinus floor and maxillary posterior teeth. Materials and Methods: Retrospectively 50 cone beam computed tomographic images in the age group of 20 to 60 years were procured from CBCT archives randomly, based on the inclusion and exclusion criteria set forth for the study. Results: Palatal root of right maxillary 1st premolar was farthest & mesiobuccal root of maxillary right 2nd molar was nearest to maxillary sinus (MS). Mean thickness of the distobuccal root for left maxillary 2nd molar with buccal cortical was maximum whereas mean thickness for the mesiobuccal root with buccal cortical plate for left maxillary 1st molar was minimum. Conclusion: Adequate radiographic investigations are required before any surgical procedure in maxillary posterior teeth region. We recommend to use CBCT a 3-dimensional imaging modality when required.