In bone grafting, autogenous bone is considered the
'gold standard' to which other method are compared.
The limitations of obtaining autogenous bone are
obvious. Allograft, xenofraft and synthetic bone graft
are widely used, but they have not solved all the
problems in bone grafting. Generally, allograft or
synthetic bone graft has lower healing capacity than
autograft and carries a risk for certain disease, such as
hepatitis or AIDS1). Occasionally, incomplete healing
is seen in spite of proper grafting procedures2). Thus,
other methods have been searched and stimulation
of the regeneration of bone is a challenging idea,
which would solve many problems in cases with bone
defects.