Diabetes mellitus (DM), is a metabolic disorder occurring when there is decreased production of insulin hormone or if there is poor body response to it. Type 1 DM is most common in children and adolescents and has a strong impact on their lifestyle. Conflicting evidence is available in the scientific literature on caries prevalence in children with diabetes and healthy children. Many studies have also reported higher plaque accumulation with greater gingival index scores in children with diabetes. Diabetes Mellitus plays a very noteworthy role in oral complications and therefore it becomes important for health practitioners to take good care of these children’s general and oral hygiene.