Abstract
Aim: To develop and assess a new protocol proposed for sex determination using frontal sinus index measured from two dimensional lateral cephalometric radiographs
Materials & Methods: The frontal sinus index was measured by two experienced radiologists and one experienced orthodontist on two hundred and one digital lateral cephalometric scans (Ninety-three males & One hundred and eight females). The maximum height and width of the sinus were measured, after that the height to width ratio was calculated. The mean height to width ratio of the sinus were tabulated and subjected to statistical analysis to determine the correlation to gender.
Results: There was a high statistically significant difference between the frontal sinus index measured between males and females' groups.
Conclusion: Frontal sinus index measured on lateral cephalometric radiographs by the developed novel protocol can be an indicator for gender identification in adult Egyptians and a larger sample multi-centric study is recommended.