“…Also the knowledge , attitude of parents and children towards oral health is much important to improve the oral health of the children and behaviour change is essential (Priya et al, 2013(Priya et al, , 2019Gurunathan, Moses and Arunachalam, 2018;Mk and umadevi, 2020) It is suggested that a holistic approach to development of healthy lifestyles and creation of healthy environments is needed in schools and families to promote oral health of schoolchildren and it is proven that involving the teachers in oral health promotion has proven effective (Jürgensen, Petersen and Others, 2013;Petersen et al, 2015) We have successfully completed numerous epidemiological studies for the betterment of our community. (Prabakar, John and Srisakthi, 2016;Kannan et al, 2017;Kumar and Preethi, 2017;Kumar, Pradeep Kumar and Vijayalakshmi, 2017;Prabakar, John, I. M. Arumugham, Kumar and Sakthi, 2018;Prabakar, John, I. M. Arumugham, Kumar and Srisakthi, 2018;Vishnu Prasad et al, 2018;Harini and Leelavathi, 2019;Khatri et al, 2019;Manchery et al, 2019;Mohapatra et al, 2019;neralla et al, 2019;Pavithra, Preethi Pavithra and Jayashri, 2019;Pratha and Prabakar, 2019;Shenoy, Salam and Varghese, 2019;Mathew et al, 2020;Samuel, Acharya and Rao, 2020). In this research we are analyzing the Effectiveness of train the trainers program in improvement of oral health of children in rural Tamilnadu.…”