Deep bite is one of the most difficult malocclusion to treat. Deep bite is a malocclusion that occurs in the vertical plane of space. Some degree of vertical overlapping or overbite is a normal feature of human dentition. However, some patients present with excessive overbite termed as deep bite or deep overbite. The deep bite in the permanent dentition may be caused by inherent factors or factors acquired during the life of that dentition. This article will describe the classification, etiology, diagnosis and various treatment modalities for deep bite correction.