Introduction Age is one of the essential factors which play an important role in every aspect of life. This study was to compare dental age with chronological age using Demirjianrsquos method and Fotirsquos method. Aim and objective To determine the Chronological age using date of birth and Dental age using Demirjanrsquos and Fotirsquos method and to compare the chronological and dental age from both the methods and to assess which method is better in estimating Chronological age.Material and methods The present study includes total of 50 patients from age group of 7 to 20 years. their chronological age was estimated using date of birth. Then the dental age was estimated using orthopantomogram from stored database by Demirjianrsquos method and Fotirsquos method.nbspResult On comparing chronological age with Demirjianrsquos and Fotirsquos methods Demirjians method showed no statistical significance but Fotirsquos method showed significant differences. Conclusion Demirjianrsquos method was better than Fotirsquos method in estimation of dental age.