INTRUSION

Deepbite can be corrected by various tooth movements, which include the following .a) Extrusion of posterior teethb) Uprighting of posterior teethc) Increasing the inclination of incisorsd) Intrusion of anterior teethe) Combination of one or two of the above tooth movements Deep overbite correction by intrusion of anterior teeth offers a teeth may be indicated in patients with unaesthetic excessive maxillary incisor show at rest position of the lip (5-8mm), and deep mandibular curve associated with long lower facial height. The amount of incisor show at rest is a crucial esthetic parameter, and can be increased due to a number of hard tissue and soft tissue factors.a) Short upper lip philtrum height- which results in children due to incomplete lip growth, in adults short lip is simply an anatomic variable.b) Vertical maxillary excessc) Excessive clinical crown height d) Detorqued maxillary incisors.Numerous methods have been described for incisor intrusion, and all of them employthe same principle, a tipback bend at the molars, or a V bend in the posterior region of the arch to provide an intrusive force at the incisors. Wire material used for the intrusion are diverse, but all