Sammendrag
The bone growth promoting effects of statins suggest that these bioactive molecules can be used to improve the
integration of bone-anchored implants. This study aimed at the application of simvastatin with dental implants for use
in patients with low bone density. Coin-shaped titanium zirconium samples with grit-blasted and acid-etched surface
were coated with simvastatin, using a novel anodic oxidation setup under alkaline conditions. The presence of intact
simvastatin attached to the surface was confirmed by infrared spectroscopy. A binding site on the aliphatic O-H group
was discovered and the integration of 1H, 18O and 12C in the depth of the surface were observed by secondary ion mass
spectroscopy. A simvastatin concentration of about 60 g/cm2 was found in a release study over 72 h. The simvastatincoated
surfaces promoted alkaline phosphatase, collagen type I and osteocalcin gene expression of MC3T3-E1 cells.
This suggested that the demonstrated coating holds potential for use in patients with compromised bone.
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