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Bone Distraction

If a bone is cut and the two parts are pulled away from each other very slowly, at a rate of about 1mm per day, the defect produced is filled with newly generated bone tissue, resulting in controlled lengthening of the bone with regard both to the desired direction and the final length. This principle was first applied to long bones in the field of orthopedic surgery, and more recently to the facial bones.

Special apparatuses have been developed enabling the distraction and lengthening of virtually every bone of the facial skeleton.
The techniques of bone distraction have, by virtue of their relative simplicity, made possible the treatment of certain conditions which in the past constituted formidable problems and greatly simplified the treatment of some difficult conditions. Certainly more developments are to be expected in the field of bone distraction.

Continuous Distraction

In collaboration with the Faculty of Dentistry, University Of Hong Kong, an auto-driven distraction prototyping device has been developed to provide a promising option for patients and doctors. The prototype can produce a continuous distraction function that could be less painful and more convenient to patients. Research findings have demonstrated that bone formation by continuous traction is more active than by intermittent traction and that bone traction can be achieved at a rapid rate by continuous distraction osteogenesis. This will shorten the treatment period and benefit to patients.