IADR Abstract Archives
Evaluation of Relationship between Third-Molars and Maxillary Sinus Using CBCT
Objectives: The aim of this study was to evaluate position of the maxillary third molar and the relationship between maxillary third molar teeth and maxillary sinus by using images obtained from cone-beam computed tomography (CBCT) scans.
Methods: In this retrospective and observational study, the maxillary third molar teeth of 147 patients, who applied to Cukurova University Faculty of Dentistry underwent CBCT scanning for various reasons, were examined. Evaluated parameters were the vertical position of the maxillary third molar teeth relative to the adjacent second molar teeth according to the Archer’s classification, relationship between the roots of maxillary third molar teeth and the lower wall of the maxillary sinus according to Winter’s classification. Pearson chi-square test was used for analysis. Significance level was determined as p = 0.05.
Results: A total of 147 patients (74 females, 73 males) with a mean age of 33.32 ± 14.31 were included in the study. A total of 155 maxillary third molar teeth, 74 right and 81 left, were examined. In our study, the depth of the maxillary third molars were the most common class A (58.1%), the most common vertical (31.6%) and horizontal (53.5%) relationship between the roots of the maxillary third molars and the maxillary sinus was Type I. Also, the most common type of angulation according to Winter classification was vertical position. No significant relationship was found between these classifications and gender or location (right / left).
Conclusions: The relationship between the maxillary third molars and the maxillary sinus should be carefully evaluated against various complications risks, especially during the tooth extraction. Necessary precautions should be taken before surgical procedures and CBCT scans should be used to assess the true relationship between maxillary sinus and maxillary third molar roots during treatment planning.
Methods: In this retrospective and observational study, the maxillary third molar teeth of 147 patients, who applied to Cukurova University Faculty of Dentistry underwent CBCT scanning for various reasons, were examined. Evaluated parameters were the vertical position of the maxillary third molar teeth relative to the adjacent second molar teeth according to the Archer’s classification, relationship between the roots of maxillary third molar teeth and the lower wall of the maxillary sinus according to Winter’s classification. Pearson chi-square test was used for analysis. Significance level was determined as p = 0.05.
Results: A total of 147 patients (74 females, 73 males) with a mean age of 33.32 ± 14.31 were included in the study. A total of 155 maxillary third molar teeth, 74 right and 81 left, were examined. In our study, the depth of the maxillary third molars were the most common class A (58.1%), the most common vertical (31.6%) and horizontal (53.5%) relationship between the roots of the maxillary third molars and the maxillary sinus was Type I. Also, the most common type of angulation according to Winter classification was vertical position. No significant relationship was found between these classifications and gender or location (right / left).
Conclusions: The relationship between the maxillary third molars and the maxillary sinus should be carefully evaluated against various complications risks, especially during the tooth extraction. Necessary precautions should be taken before surgical procedures and CBCT scans should be used to assess the true relationship between maxillary sinus and maxillary third molar roots during treatment planning.