Evaluation of The Ethmoid Bone Using by Cone Beam Computed Tomography In Turkish Subpopulation

Objective: The objective of this retrospective study was to evaluated anatomical structures of ethmoid bone on cone beam computed tomography (CBCT) images in a Turkish subpopulation. Methods: The CBCT images of 200 patients (116 female and 84 male), between the age of 18 and 50 years, who met the study criteria were selected randomly. The medial ethmoid roof height (MERH), cribriform plate height (CP), the height of the lateral lamella of the cribriform plate (LLCP) were measured. All the data were grouped by age, side, and gender. Results: For MERH; the mean heights for the left and the right side were 25.55 +/- 3.00 mm and 25.24 +/- 3.01 mm, respectively. There was no significant difference between right MERH and genders (p>0.05). The mean LLCP heights on the right and left sides were 4.98 +/- 2.12 mm and 4.49 +/- 1.64 mm, respectively. It was found that LLCP height did not have a statistically significant correlation with gender (p>0.05). The average of right and left CPH were calculated 20.55 +/- 2.61 mm and 20.82 +/- 2.75 mm, respectively. Both the right and left CPH were significantly higher in males (p<0.05). Also, there was no correlation between the height of the anatomical structures of the evaluated ethmoid bone and the increase or decrease in age (p>0.05). Conclusion: Morphological differences in the anatomy of ethmoid bone were shown in this study. The anatomical structures showing changes due to factors such as side, age, gender, and race should be examined in three dimensions before the operation.