IADR Abstract Archives
Proximity of Roots of Maxillary Posterior Teeth to Maxillary Sinus Floor in a Sample of Pakistani Population Using Cone Beam Computed Tomography
Objectives: To evaluate the vertical relationship of the roots of maxillary posterior teeth with maxillary sinus floor in a sample of Pakistani population using cone-beam computed tomography (CBCT) and to relate it with gender and compare right and left sides.
Methods: Ethical review committee approval was obtained prior to commencement of the study. 60 CBCT scans of individuals aged between 15-65 years were evaluated. The cross-sectional images in the axial, coronal, and sagittal planes were reconstructed using GALAXIS version 1.9 and roots classified into Jungs classification for proximity to maxillary sinus floor. The distance in mm between the sinus floor and the apices of maxillary posterior teeth was measured using the software.
Descriptive statistics for Jungs classification was computed. Paired t-test was applied to evaluate bilateral symmetry and independent t-test for difference in gender.
Results: In 60 CBCT scans, a total of 1066 roots were evaluated. The most common maxillary tooth root in Type III group of Jung classification is the mesio-buccal root of the 2nd molar followed by palatal roots of 1st molar with the shortest mean distance of 0.44±3.05mm and 1.58±4.01mm respectively. The maxillary tooth root most frequent in Type I group is buccal root of 1st and 2nd premolars with mean distance of 8.15±6.65mm and 7.38±6.60mm respectively. No statistically significant difference was found between gender and sides. (p ≥0.05).
Conclusions: In a sample of Pakistani population, among the roots of the maxillary molars, the most common root protruding in the sinus, was the mesio-buccal root of the 2nd molar followed by palatal roots of 1st molar. The most distant maxillary tooth root from the sinus was the buccal root of 1st and 2nd premolars.
Methods: Ethical review committee approval was obtained prior to commencement of the study. 60 CBCT scans of individuals aged between 15-65 years were evaluated. The cross-sectional images in the axial, coronal, and sagittal planes were reconstructed using GALAXIS version 1.9 and roots classified into Jungs classification for proximity to maxillary sinus floor. The distance in mm between the sinus floor and the apices of maxillary posterior teeth was measured using the software.
Descriptive statistics for Jungs classification was computed. Paired t-test was applied to evaluate bilateral symmetry and independent t-test for difference in gender.
Results: In 60 CBCT scans, a total of 1066 roots were evaluated. The most common maxillary tooth root in Type III group of Jung classification is the mesio-buccal root of the 2nd molar followed by palatal roots of 1st molar with the shortest mean distance of 0.44±3.05mm and 1.58±4.01mm respectively. The maxillary tooth root most frequent in Type I group is buccal root of 1st and 2nd premolars with mean distance of 8.15±6.65mm and 7.38±6.60mm respectively. No statistically significant difference was found between gender and sides. (p ≥0.05).
Conclusions: In a sample of Pakistani population, among the roots of the maxillary molars, the most common root protruding in the sinus, was the mesio-buccal root of the 2nd molar followed by palatal roots of 1st molar. The most distant maxillary tooth root from the sinus was the buccal root of 1st and 2nd premolars.