Research Information System
in: Effective and efficient orthodontic tooth movement, James A. McNamara,Nan Hatch,Sunil D. Kapila, Editor, University of Michigan Press, Ann Arbor (MI), USA , Michigan, pp.207-231, 2011
DISTRACTION OSTEOGENESIS TO ACCELERATE TOOTH MOVEMENT AND ORTHODONTIC TREATMENT
Haluk İşeri and Reha S. Kişnişci
Dentolaveolar distraction osteogenesis (DAD) for rapid orthodontic tooth movement is a new and promising technique based on the principles of distraction osteogenesis. The DAD technique shortens the duration of overall orthodontic treatment time in extraction cases. Rapid canine retraction by DAD is based on four sequential periods of distraction osteogenesis: osteotomy, latency, distraction and consolidation. After DAD surgery, distraction is initiated within three days. The distractor is activated twice per day for a total of approximately 0.8 mm per day. The canine is moved in its surrounding alveolar bone as an alveolar bony transport disk including the tooth. Using the DAD technique, canines can be retracted fully into extraction spaces of the premolars in eight to fourteen days. With the DAD technique, anchorage teeth can withstand the retraction forces with no anchorage loss, and teeth moved rapidly without any clinical or radiographic evidence of complications such as root resorption, root fracture, ankylosis, periodontal problems and soft tissue problems. Therefore, DAD technique reduces overall orthodontic treatment time significantly (by about 50%). Possible orthodontic treatment duration would be nine to twelve months in moderate to severe malocclusion cases, with no unfavorable longterm effects. Moreover, by using the DAD technique, there is no need for extra or intraoral anchorage mechanics, even in maximum anchorage cases.
KEY WORDS: distraction osteogenesis, canine retraction, transport disc, alveolar surgery