Introduction: The vertical heights and the proportions are very important for balance of the face and attractiveness along with the good smile. Harmonious vertical proportions and the Antero-posterior relations contribute to aesthetics. Therefore it is necessary to determine the vertical facial height and the ratios in treatment planning of the patients. The aims and objectives of this study are to compare the vertical facial heights of patients considering the Lower Anterior Facial Height (LAFH), the Upper Anterior Facial Height (UAFH), Total Anterior Facial Height (TAFH) and Posterior Facial Height (PFH) among the sexes in Class I skeletal group obtained from cephalometric analysis. Materials & Method: The study material comprised of 52 patients (24 males and 28 females) and lateral cephalometric radiographs were traced with Skeletal Class I relationship. Cephalometric analysis was performed by using hand tracing. Independent t tests were used for comparisons. Result: The total anterior facial height (TAFH), lower anterior facial height (LAFH), upper anterior facial height (UAFH), total posterior facial height (TPFH) measurements showed no significant differences between both sexes in Skeletal Class I group but statistically significant difference in ratios of posterior facial height and total anterior facial height and also there was statistically significant differences in the ratio between upper facial height and the total anterior facial height (p value <0.05). Conclusion: This cephalometric analysis can be applied to determine the vertical height of occlusion which can be helpful in prosthetic rehabilitation of edentulous patients.

Background: Selection and arrangement of the maxillary anterior teeth has always been most important as well as challenging for the edentulous patients. It demands rehabilitation of the functions with the aesthetics as priority. Objective: The aim of this study was to assess the relation between interalar widths and inter canine distance in aid for the replacement of artificial maxillary anterior teeth. This study also assessed the relation of inter alar distance and inter canine distance in different population such as Aryans and Mongoloids. Materials and Methods: To study the relation between interalarwidth and inter canine distance, measurements were taken from 228 subjects. Inter alar width was recorded by digital vernier caliper while the patient made seated on dental chair in a relaxed posture. Inter canine width was measured in the cast with digital vernier caliper. Result: out of 228 participants Gender distribution was 118 males and 110 females where 84 were Mongoloids and 144 were Aryans whose age ranged from 25 to 45 years. This result showed that the males have greater interalar width and inter canine width in compared to females (male: 32.64 ±4.3, female: 30.64± 3.55) and is statistically significant (p <0.05).The mean value of inter alar width and intercanine width was also determined. Mongoloids have wider nose and increased intercanine width than Aryan but not statistically significant. The Pearsons coefficient index "r" showed a large positive correlation between interalar distance and intercanine width and was statistically significant. (r=0.642, p<0.01) Conclusion: The study concluded that inter alar width can be a very useful guideline for the selection and replacement of anterior teeth for edentulous patients in Mongoloid and Aryan population.