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Sexual Dimorphism in Anterior Nasal Spine Dimensions Among Undergraduate Students

Abstract

The study examines sexual dimorphism in anterior nasal spine dimensions among undergraduate students, with emphasis on determining whether measurable differences exist in selected dimensions of the anterior nasal spine between male and female participants. The anterior nasal spine is a bony projection of the maxilla located at the anterior margin of the nasal cavity and contributes to the structural support of the nasal septum and external nose. Its dimensions and morphology are relevant to the understanding of craniofacial variation and may have clinical importance in orthodontic assessment, maxillofacial surgery, rhinological procedures, and the interpretation of craniofacial imaging. The study will determine selected dimensions of the anterior nasal spine and compare the measurements between male and female undergraduate students. The specific objectives will include measuring the length, height, and other relevant dimensions of the anterior nasal spine, determining the mean values for each sex, assessing the degree of variation within the study population, and establishing whether statistically significant differences exist between male and female participants. A cross-sectional descriptive research design will be adopted for the study. An appropriate sample of undergraduate students will be selected using a suitable sampling technique. Measurements of the anterior nasal spine will be obtained using standardized anatomical landmarks and appropriate imaging-based or osteological procedures. The collected data will be analyzed using descriptive statistics such as frequency, percentage, mean, and standard deviation, while appropriate inferential statistical tests will be used to compare the measurements between male and female participants. The study is expected to reveal measurable variation in anterior nasal spine dimensions among the undergraduate students studied. Some dimensions may demonstrate differences between male and female participants, while other measurements may show considerable overlap between the groups. The statistical analysis will determine the extent and significance of any observed differences and provide information on the pattern of sexual variation in the anterior nasal spine within the study population. The findings will be useful to anatomists, anthropologists, radiologists, orthodontists, dental practitioners, maxillofacial surgeons, and otorhinolaryngologists involved in the assessment of craniofacial and nasal structures. The study may provide useful reference data for understanding sex-related anatomical variation of the anterior nasal spine and may support craniofacial assessment, interpretation of imaging findings, orthodontic planning, surgical procedures, and anatomical education. The study will conclude by documenting the dimensions of the anterior nasal spine and assessing the extent of sexual dimorphism among the undergraduate students studied. It is recommended that standardized anatomical and imaging-based measurement procedures be used when evaluating the anterior nasal spine, while further studies involving larger and more diverse populations should be conducted to establish broader craniofacial reference values and improve understanding of anatomical variation.

Keywords: Anterior nasal spine, sexual dimorphism, anterior nasal spine dimensions, maxilla, craniofacial anatomy, nasal anatomy, facial skeleton, anatomical variation, morphometry, undergraduate students, sex differences, nasal cavity, orthodontics, maxillofacial anatomy, radiology.