Background: This study was conducted to assess the prevalence of malocclusion with myofunctional appliances, dental caries, partial edentulism and periodontitis in children of a known population. Material and methods:In this study, 100 children aged from 11-20 years were included. Full mouth examination of all the participants was carried out. Informed consent was recorded from these participants before starting the procedure. The mean age of the children was 15.7 years. Statistical analysis was conducted using SPSS software. It was found that 10 children had class 2 malocclusion; hence for them, twin block appliance and jasper jumper appliance were fabricated. Results: It was found that out of 100 participants, 35 had dental caries, 30 had periodontitis, 25 had partial edentulism and 10 had class 2 malocclusion. The subjects having dental caries underwent root canal treatment followed by composite filling and crown. The subjects having periodontitis got scaling done followed by root planning. They were advised to rinse their mouth with warm salty water 2-3 times a day. The subjects who had few of their teeth missing got fixed partial dentures. And in the subjects having class 2 malocclusion, twin block appliance was given in 6 subjects and in the remaining 4 subjects, jasper jumper was given. Conclusion: In the present study, dental caries was the most prevalent among the children followed by periodontitis, partial edentulism and class 2 malocclusion, respectively. Root cala treatment was performed to treat dental caries followed by composite filling and crown placement. Scaling and root planning was done in subjects having periodontitis. FPDs were planned for those having missing teeth. Twin block appliance and Jasper Jumper appliances were used in children to treat class 2 malocclusion. Keywords: dental caries, RCT, periodontitis, scaling, FPD, twin block, jasper jumper, prevalence, treatment.