Mandibular lengthening using preprogrammed intraoral tooth-borne distraction devices.
OBJECTIVE
This report describes the application of an intraoral device for treatment of malocclusions characterized by mandibular deficiency and the surgical technique for its placement.


METHODS
In an office setting, 5 retrognathic patients underwent mandibular lengthening via distraction osteogenesis with an intraoral tooth-borne distraction device. Under local anesthesia and sedation, mandibular corticotomies, mobilization, and placement of the distractors were performed. Preoperative, intradistraction, and postoperative dental casts, photographs, and cephalometric radiographs were used to analyze the results.


RESULTS
In 3 of the 5 cases, distraction occurred along the planned vector. The remaining 2 cases showed opening rotations of the mandibular anterior segment along with the advancement.


CONCLUSIONS
This study documents that the mandible and the dental arch can be lengthened successfully using this technique.
Dessner
S
S
dezdmd@aol.com
Razdolsky
Y
Y
El-Bialy
T
T
Evans
C A
CA
D000293:Adolescent; D005115:Extraoral Traction Appliances; D005240:Feasibility Studies; D005260:Female; D006801:Humans; D008297:Male; D008312:Malocclusion, Angle Class II / Q000601:surgery; D008334:Mandible / Q000601:surgery*; D019186:Mandibular Advancement / Q000295:instrumentation* / Q000379:methods; D019857:Osteogenesis, Distraction / Q000295:instrumentation*; D063173:Retrognathia / Q000601:surgery*; D016896:Treatment Outcome