Orthodontic intrusion is a common treatment approach in managing orthodontic esthetics and functional problems, including gummy smile and deep bite.Deep bite can be corrected in a number of ways, depending on the individual needs of the patient and the nature of the problem. There are two major mechanisms in biomechanics of intrusion: continuous and segmental. Various methods of incisor intrusion include utility arches, Connecticut intrusion arch, burstone intrusion arch, K sir Arch and tip back spring. Various methods of molar intrusion includes TADs, Headgears, biteplane, magnets, maxillary intrusion splint, Invisalign and active vertical corrector. In this review, the various intrusion methods and its mechanics are discussed in detail.