CDE programme was conducted on 24.11.2018 by Department of Biochemistry for the topic “Role of zinc in type-2 diabetes mellitus with periodontitis” which was delivered by Dr. D.S Pushparani, Assistant professor, Department of Biochemistry, SRM dental College and Hospitals, Chennai, India. There were 91 under graduates who attended the programme. She enlightened the audience about the direct relation between the risks and complications of diabetes and periodontitis and outlined the features that govern the interrelationship between zinc and diabetes mellitus with periodontal disease, including the physiologic mechanisms and clinical studies with scientific evidences. She correlated the importance of zinc and its protective effect for the treatment for periodontitis who suffer from type-2 diabetes mellitus with her research findings. Her simple explanatory talk was very useful to the budding dentists and they were able to interact with the speaker effectively with relevance to mechanism of action therapeutic action of zinc for periodontitis with diabetes. The talk was very impressive, novel and informative to the students as well as to the faculty members.