Diabetes Mellitus is a metabolic disorder char¬acterized by the presence of chronic hyperglycemia ac¬companied by alterations in the carbohydrate, protein, and lipid metabolisms. It has become a global epidemic, the complications of which have a significant bearing on the quality of life and longevity of an individual. Long standing hyperglycemia which is unattended can results in widespread multisystem damage in the form of retinopathy, neuropathy, nephropathy, macrovasular disease, and delayed wound healing. This article intends to put forth a complete review on the oral manifestations as a sequle of diabetes mellitus