Topographic relationship between maxillary sinus and roots of posterior teeth: a cone beam tomographic analysis

Abstract

PurposeThe objective of the research was to determine the relationship between root apicesand maxillary sinus wall, and to analyze pulpoapical conditions of 2nd premolars, 1stmolars, 2nd molars, 3rd molars using cone beam computerized tomography (CBCT).Materials and MethodsThis study was conducted on a retrospective manner of CBCT images of 1000maxillary sinus with 500 subjects, who visited the Department of Dento-MaxillofacialRadiology. The association of each teeth with sinus floor and pulpoapical statuswere categorized. The association among gender, age, lateralization of sinus cavitywere evaluated.ResultsA total of 602 second premolars, 500 first molars, 623 second molars, 347 thirdmolars were evaluated. There were no significant differences between pulpoapicalcondition of teeth and gender or left and right sides (p=0.065, p=0.072). Therewere significant associations between pulpoapical condition of all teeth and age(p=0.023), and the relationship of each root with maxillary sinus and age (p=0.037).There was significant association between vertical position and right/left sides insecond and third molars (p=0.033).ConclusionAge seems to have relationship with periapical condition of teeth, and theassociation of root with the sinus cavity.