Ankylosed maxillary incisor with severe root resorption treated with a single-tooth dento-osseous osteotomy, vertical alveolar distraction osteogenesis, and mini-implant anchorage

Single-tooth dento-osseous osteotomy with a computer-aided design/computer-aided manufacturing surgical guide

“…Single-tooth dento-osseous segmental osteotomy is a good option when vertical alveolar bone growth is hampered by bony ankylosis 2 3 4 . Distraction of a dento-osseous segment can be performed with an orthodontic device that is either fixed with screws inserted into the osseous segment or with a bracket that is bonded onto the coronal part of the tooth 2 3 4 . However, it may be difficult to determine the cutting section between adjacent teeth, and the procedure may hinder blood circulation to the dento-osseous fragment.…”

“…However, it may be difficult to determine the cutting section between adjacent teeth, and the procedure may hinder blood circulation to the dento-osseous fragment. In addition, complications such as gingival recession can occur 2 5 .…”

“…Trauma-induced bony ankylosis that occurs during a growth period can hamper the vertical growth of alveolar bones. This condition results in an open bite that poses aesthetic and functional problems 1 2 . A single-tooth dento-osseous osteotomy may be the optimal treatment plan for bony ankylosis 2 3 .…”

“…This condition results in an open bite that poses aesthetic and functional problems 1 2 . A single-tooth dento-osseous osteotomy may be the optimal treatment plan for bony ankylosis 2 3 . Here, we introduce a method for performing single-tooth dento-osseous osteotomy with a surgical guide created with computer-aided design/computer-aided manufacturing (CAD/CAM) technologies.…”

Use of alveolar distraction osteogenesis for anterior maxillary defect reconstruction

“…The trapezoidal shape is necessary to guarantee fragment movement during the osteodistractor activation. [11] After the osteotomies, two mini-implants (1.5 mm × 8 mm; SIN Implant Systems-São Paulo, SP, Brazil) were placed at the center of each side of the bone fragment [Figure 4].…”