Vertical bone augmentation induced by ultrathin hydroxyapatite sputtered coated mini titanium implants in a rabbit calvaria model.

Abstract

BACKGROUND The purpose of this study was to evaluate the vertical new bone formation induced by sputtered HA-coated titanium implants (HA-coated) compared with sandblasted acid-etched titanium implants (noncoated) in a rabbit calvarial model. MATERIALS AND METHOD Twenty HA-coated and 20 noncoated titanium implants were divided equally into four groups as HA-coated implant (HA); noncoated implant (NC); HA-coated implant with membrane (HA/M); noncoated implant with membrane (NC/M). All implants were placed 5 mm above the original bone (OB). Collagen membranes were placed over the implants in HA/M and NC/M groups. The animals were sacrificed at 4 weeks (n = 5) and 8 weeks (n = 5). Vertical bone height above OB (VBH, mm) and augmented bone area (ABA, mm(2) ) were analyzed histologically and radiographically. RESULTS At 4 weeks, VBH reached significantly higher level in HA/M group compared with other three groups (p < 0.05). At 8 weeks, significant difference was detected between HA/M and NC groups (p < 0.05). At 4 and 8 weeks, ABA in HA/M group was significantly larger compared with other three groups (p < 0.05). CONCLUSION The present results indicated that sputtered HA-coated titanium implant together with collagen membrane could be a novel and effective approach for vertical bone augmentation.

DOI: 10.1002/jbm.b.33347

Cite this paper

@article{Wang2015VerticalBA, title={Vertical bone augmentation induced by ultrathin hydroxyapatite sputtered coated mini titanium implants in a rabbit calvaria model.}, author={Xin Wang and Osama Zakaria and Marwa Madi and Jia Hao and Joshua Chou and Shohei Kasugai}, journal={Journal of biomedical materials research. Part B, Applied biomaterials}, year={2015}, volume={103 8}, pages={1700-8} }