Objective: To determine the association of anterior alveolar dimensions with different vertical facial patterns at a tertiary care Hospital. Material and Methods: This Cross-sectional study took place in Orthodontic Department, Institute of Dentistry, Liaquat University of Medical and Health Sciences, Jamshoro, during 6 months form June 2018 to December 2018. Patients with age group 18-30 years and both genders were included. All the subjects were divided into three groups, Average face (Subjects with LAFH-TAFH ratio of 56% -58%), short face (Subjects with LAFH-TAFH ratio of <55%) and long face (Subjects with LAFH-TAFH ratio of >59%), The vertical facial pattern was calculated from TFH i.e., the LAFH and TAFH ratio All the data was recorded by the study proforma for the purpose of analysis. Results: Total 90 patients were studied; their mean age was 21.12+3.47 years. Females were in majority 52.2% and males were 47.8%. Long face was 37.8%, short face 37.8% and average face were 24.4%. Mean upper posterior alveolus width was significantly higher in short face of vertical facial pattern, and mean of upper anterior alveolus height was higher in long face (p-<0.05). Mean of upper anterior alveolus width was significantly higher in average face of vertical facial pattern, and lower anterior alveolus height was markedly higher in long face of vertical facial pattern (p- 0.001). Though mean of lower anterior alveolus width and lower posterior alveolus width were insignificantly associated with vertical facial pattern. Vertical facial pattern was statistically insignificant according to gender p-value 0.226. Conclusion: There was a significant association between dimensions of anterior alveolar among different vertical facial patterns. Kewords: Anterior alveolar dimensions, vertical facial pattern

and sagittal jaw relationship. Methodology: This Cross-sectional study took place in Orthodontic Department, Institute of Dentistry, Liaquat University of Medical and Health Sciences, Jamshoro, from August 2018 to January 2019. Patients of both genders ranging in age from 18 to 30 years were included. All the subjects, as per ANB angle, were grouped into three categories as (Class I = value between 1° and 4° for ANB angle), (Class II = value > 5° for ANB angle) and (Class III= value <1° for ANB angle). All the data was recorded in the Performa for the purpose of analysis. Results: A total of 90 patients were studied; their average age was 21.12+3.47 years and 52.2% were females. Mean upper posterior alveolus width was significantly higher in sagittal class II as 12.69 ± 5.52 than in sagittal class I and III p-value 0.058. The mean upper anterior alveolus height was found to be significantly greater in class I and III in contrast to class II p-value 0.028. Mean lower anterior alveolus width was insignificantly related with sagittal classification, p-value 0.343. Mean upper anterior alveolus width and lower posterior alveolus width were insignificantly related to sagittal classification, and the p-value were quite insignificant. Sagittal class II and III were significantly associated with female gender 0.021, while class I was linked to male gender p-value 0.021. Conclusion:  There was a significant association between dimensions of anterior alveolar among different vertical and sagittal jaw association.