Deep bite - an orthodontic engima

Deep overbite is a common form of malocclusion that may be addressed in many ways, including posterior extrusion, anterior intrusion, and incisor flaring. The specific approach to bite opening should be selected based on each patient's needs. Soft tissue, crown-gingival relations, occlusal plane, and skeleton facial concerns are among the special considerations for treatment planning for deep overbite correction. Selecting the method and mechanism of bite opening based on these considerations affords the opportunity to deliver goal-oriented treatment. Understanding the biomechanics of the appliances chosen improves the clinician's ability to achieve the desired results. With intrusion mechanics, the spring design allows attention to the magnitude of force, force constancy, the point of force application, and the molar tipback moment. Intrusion of incisors is ideal for a patient with a long vertical face and incompetent lips. Proper application of intrusive mechanics is essential to achieve results with minimal side effects.