Assessment of Anterior Extension of the Maxillary Sinus and the Canine Root Tip as a Pretreatment Evaluating Tool Using CBCT: A Retrospective Study

and reliable inference regarding the relationship between the maxillary canine tooth and the surrounding structures, planes are corrected parallel and perpendicular to the long axis of the tooth.This was estimated due to the morphological curvature of the maxillary arch and the canine position in the arch.Numerous CBCT studies have been performed relating the posterior molars and the proximity of the maxillary sinus floor, and IntroductIonThe maxillary sinus reaches full development by the age of 18-20 years.This hollow cavity extends from the apical region of the maxillary cuspids to the posterior wall of the maxilla, above the tuberosity. 1 On intraoral or panoramic radiographs, the sinus can be misinterpreted as a cystic lesion when it pneumatizes the maxilla in a forward direction.It is essential to study these anatomical structures as they provide a pathway for infections from periapical or periodontal diseases to extend into the sinus floor, potentially leading to maxillary sinusitis. 2Clinical treatments such as endodontic surgery, orthodontic procedures, and implant placement rely heavily on the proximity of the maxillary tooth root apices to the sinus floor.Every branch of dentistry, including endodontics, orthodontics, periodontics, oral surgery, and oral implantology, is making extensive use of an advanced imaging modality known as cone-beam computed tomography (CBCT). 3It is user-friendly software that arranges the acquired images in a multiplanar format, providing the operator with the added benefit of threedimensional (3D) reconstruction and the ability to observe the whole depth of the tissue.CBCT scans yield precise morphometric measurements and image reconstruction of the three planes with the use of specialized 3D software.Planning a course of therapy, choosing a case, and minimizing collateral harm during surgery can all benefit from this knowledge.For maximum accuracy