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The International Journal of Adult Orthodontics & Orthognathic Surgery
(Published from 1986-2002)

Edited by Robert L. Vanarsdall, DDS and Raymond P. White, Jr, DDS, PhD

Continued by World Journal of Orthodontics.

ISSN 0742-1931

The International Adult Orthodontics & Orthognathic Surgery
Volume 17, Issue 4


Osteogenic distraction and orthognathic surgery to correct sequelae of ankylosis of the temporomandibular joint: A case report

Jorge Tellez Rodriguez,DDS, Daniela Carvalho Tosin, DDS,

A 17-year-old female patient presented with sequelae to ankylosis of the temporomandibular joint, which included vertical maxillary protrusion, anterior open bite, labial incompetence, micrognathia, undefined neck angle, facial asymmetry, Class II molar relationship, and Class III canine relationship. She presented with the following cephalometric and soft tissue data: SNA angle = 78 degrees, SNB angle = 70 degrees, incisor-nasion-point A = 11 degrees, incisor-nasion-point B = 33 degrees, Frankfort-mandibular plane angle = 43 degrees, occlusal plane = 25 degrees, subnasale-stomion = 20 mm, stomion superius–stomion inferius = 9 mm, stomion inferius–soft tissue menton = 30 mm, neck angle = 144 degrees, and chin projection = 10 mm. Orthognathic surgery and mandibular osteogenic distraction were employed, specifically Le Fort I osteotomy to decrease a vertical excess of 12 mm, augmentation genioplasty of 17 mm, and bilateral extraoral distractors of bidirectional vector for a 14-mm augmentation of the mandible. The result was satisfactory with minimal adverse complications.

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