ABSTRACT
Diabetes Mellitus is a chronic disease prevalent worldwide with an increasing frequency of occurrence. Diabetes produces a wide array of symptoms throughout the body. It is said that mouth is the mirror of systemic health. The effects of diabetes are most frequently reflected in the oral cavity. Gingivitis and periodontitis are most frequently associated with diabetes. Periodontitis has been reported as sixth complication of diabetes and they both exhibit a bidirectional interrelationship. This article reviews about the oral lesions occurring in diabetes and their pathogenesis. This article also focuses on the interrelationship between diabetes and oral health stressing the need for oral health assessment and treatment as part of preventive medical therapy for diabetes.