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Unlike steel or other implants, Bioglass® (PerioGlas®, NovaBone®
and NovaBone-C/M®) is not rejected. In fact, Bioglass® slowly
releases small amounts of soluble silica and calcium, which in
turn activate seven families of genes present in bone cells,
causing them to create new, healthy bone.
Particulate bioactive glass has been used as a bone graft
material for the filling of osseous defects since 1994. Good
tissue healing and a lack of infections noted with its use in
oral periodontal studies suggested an antibacterial effect for
this material. Recent in vitro studies have evaluated bioactive
glass for its effect on various oral bacteria and was found to
exert an antibacterial effect against all bacterial strains
against which it was tested.
The use of Bioglass® synthetic graft devices reduces the
surgical costs and risks associated with the harvesting of
autogenous tissues. These devices are produced to set
specifications to control any differences between batches,
resulting in a safe and effective product. To date, over 850,000
particulate Bioglass® devices have been produced and sold for
the treatment of osseous defects around the world.
A recent development in the bone graft field include devices
with various proteins, either alone or as adjuncts to current
graft materials, to stimulate and increase bone formation in a
grafted defect. While a few such devices are clinically
available, little justification in terms of end results has been
provided for the 2-to 3-fold increase in protein device cost. |