Effective maxillary orthopedic protraction for growing Class III patients: a clinical application simulates distraction osteogenesis.
The effective maxillary orthopedic protraction is an innovative technique for maxillary protraction in Class III growing patients. It includes three components: a new 2-hinged rapid maxillary expander for a greater amount of anterior displacement of maxilla, repetitive weekly protocol of Alternate Rapid Maxillary Expansion and Constriction (Alt-RAMEC) for disarticulating the maxilla, and intraoral maxillary protraction springs for non-compliant protraction. On average, the maxilla could be protracted for 5.8 mm in 3 months and the result remains stable at least 2 years later. The rationale for this technique is sutural expansion/ protraction osteogenesis. Sutural expansion/ protraction osteogenesis is a form of distraction osteogenesis. However, it still needs to be scrutinized experimentally for the sutural reactions corresponding to the effective maxillary orthopedic protraction.
Liou
Eric Jein-Wein
EJ
Department of Orthodontics and Craniofacial Dentistry - Chang Gung Memorial Hospital - Taipe, Taiwan. lioueric@ms19.hinet.net
D006801:Humans; D008313:Malocclusion, Angle Class III / Q000601:surgery*; D008437:Maxilla / Q000254:growth & development / Q000601:surgery*; D019857:Osteogenesis, Distraction / Q000295:instrumentation* / Q000379:methods; D010155:Palatal Expansion Technique / Q000295:instrumentation*; D016896:Treatment Outcome