Treatment of an Ankylosed Maxillary Central Incisor By Single-Tooth Osseous Osteotomy

Abstract

Ankylosis is the fusion between the mineralized root surface and the alveolar bone and led to development of infraocclusion. Osteocorticotomy is a surgical procedure in which the intact ankylosed tooth and adjacent bone are either repositioned in 1 step or moved orthodontically. This case report describes the treatment of a boy, aged 14.9 years, whose ankylosed maxillary right central incisor had been infraocclused due to the trauma. We performed a segmental osteotomy with in a single-stage surgery to allow for inferior repositioning of the tooth and bone. This technique permits optimal repositioning of the tooth and allow rapid movement of teeth with the block of bone. The traction of the single-tooth osteotomy block can be repositioned to the desired position immediately by vertical extrusion bends, vertical elastics, a coil spring, a nickel- titanium wire, or a simple distraction device.