Removable appliances are very effective in correcting a deep overbite, especially in a growing patient. An upper removable appliance with an anterior bite plane is used which disengages the molars by 2-3 mm whilst at the same time establishing lower incisor contact with the bite plane (Fig. 6). Eruption of the posterior teeth produces a reduction in the overbite. It is essential that the inter-incisor angle is corrected at the completion of treatment so that an occlusal stop between the upper and lower incisors is produced preventing re-eruption of the incisors and a relapse of the overbite. Bite planes are usually used in conjunction with fixed appliances to help the overbite reduction (Figures 7a-d) or can be used as an aid to restoration of the anterior teeth. Figures 8a-d show a patient with a deep bite who had marked enamel erosion. Porcelain crowns were to be placed on the anterior teeth to restore them, but the deep bite made this technically difficult. The overbite
Fig. 7b An upper removable appliance is used to help the overbite reduction whilst palatal springs simultaneously move the first permanent molars distally
Fig. 7b An upper removable appliance is used to help the overbite reduction whilst palatal springs simultaneously move the first permanent molars distally was therefore reduced with a bite plane to make room for the crowns.
Was this article helpful?