Cephalometric Soft Tissue Standard and Gender Dimorphism in Nasal Prominence estimated By Holdaway's Analysis in Patients visiting College of Dentistry, Aljouf University.

INTRODUCTION: The objectives were to see the nasal prominence norm and the gender dimorphism in nasal prominence measured by Holdaway's soft tissue analysis.

MATERIALS AND METHODS: The sample size was 100 (50 males and 50 females). The subjects included in the study were of Saudi origin with class I skeletal and dental relationship and all teeth present. The age group of the patients was between 18 and 28 years. The radiographs were traced and analyzed by two students and cross-checked by an orthodontist. The nasal prominence was measured according to the technique described by Holdaway.

RESULTS: The descriptive statistics were calculated for both male and female groups. The mean value of nasal prominence when male and female samples were combined was 14.08 mm. No statistically significant difference was found (p = 0.083) when genders were compared. The level of significance was set at p < 0.05.

CONCLUSION: No statistically significant difference was found when genders were compared. The value for males was normal while the value for females was less than Holdaway's normal.

CLINICAL SIGNIFICANCE: These values would aid in treatment planning for orthognathic surgery and orthodontic treatment.