MORPHOMETRIC STUDY OF PIRIFORM APERTURE AND NASAL BONE IN HUMAN DRY SKULLS

Abstract Introduction: The measurements of PA can be an anatomical landmark used for ethnic differentiation in human identification and provide information for surgical procedures and nasal reconstruction in otolaryngology. There are many variations in nasal bone shape among the different population e.g. The nose is much broader with thickened upper nasal region in East Asians. It is longer and more prominent in Middle Eastern and Southern European populations. Most Egyptian skulls are typically North African Caucasians. Aim: Morphometric study of piriform aperture and nasal bone in human dry skulls. Materials and Methods: Sixty adult dried human skulls, whose age and origins were unknown, were taken from the Anatomy Department of the SSJGIMSR in Almora for observational research. All whole skulls are required for inclusion. All distorted and fractured skulls matched the exclusion criteria. Results: The nasal bone's height ranges between 14.33 and 23.11 mm, with a mean of 19.26 mm and a standard deviation of 2.38 mm. The nose bone's breadth ranges from 12.3 mm to 16.48 mm, with a mean of 14.15 mm and an extremely tiny 1.04 mm standard deviation. With an average height of 27.08 mm and a standard deviation of 2.27 mm, the piriform aperture's height ranges from 23.09 mm to 30.77 mm. With a mean of 19.39 mm and a standard deviation of 1.15 mm, the upper breadth ranges from 16.81 mm to 21.2 mm. With an average width of 24.05 mm and a standard deviation of 1.57 mm, the lower width ranges 19.12 mm to 27.54 mm. Conclusions: The results of the current study indicate that, although there is some gender-specific variations in the morphometric measurements of the nasal bone and piriform aperture, only the piriform aperture's height demonstrates a difference that is not statistically significant, with men having a higher mean height than women.