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Osteoblast responses to as-deposited and heat treated sputtered CaP surfaces

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Abstract

The clinical success of dental implants is governed by implant surfaces and bone cell responses that promote rapid osseointegration. The objective of this study was to evaluate the in vitro osteoblast cell response to heat treated and non-heat treated CaP coatings. In this study, the heat treated surfaces exhibited a poorly crystallized HA-type structure whereas the non-heat treated surface exhibited an amorphous structure. The heat treated CaP surfaces were observed to have a mean contact angle measurement of 57.95±0.95 degrees, whereas the non-heat treated CaP surfaces were observed to have a mean contact angle measurement of 44.6±0.3 degrees. From the in vitro cell culture study, the ATTC CRL 1486 human embryonic palatal mesenchyme (HEPM) cells displayed a similar protein production and hexosaminidase activity on the heat treated and non-heat treated CaP surfaces throughout the nine day experiment. However, the HEPM cells cultured on non-heat treated CaP surfaces were observed to have higher specific ALP activity after nine days’ incubation compared to cells cultured on heat treated CaP surfaces. The higher specific ALP activity by cells on non-heat treated surfaces were suggested to be attributed to the lower degree of crystallinity and the lower contact angles observed in this study. © 2001 Kluwer Academic Publishers

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Authors and Affiliations

  1. Department of Restorative Dentistry, Division of Biomaterials, University of Texas Health Science Center at San Antonio, MSC 7890, 7703 Floyd Curl Drive, San Antonio, TX, 78229–3900, USA

    J.L. Ong, D.R. Villarreal, R. Cavin & K. Ma

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  1. J.L. Ong
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  2. D.R. Villarreal
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  3. R. Cavin
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  4. K. Ma
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Ong, J., Villarreal, D., Cavin, R. et al. Osteoblast responses to as-deposited and heat treated sputtered CaP surfaces. Journal of Materials Science: Materials in Medicine 12, 491–495 (2001). https://doi.org/10.1023/A:1011259311032

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