In Vitro and in Vivo Characteristics of Fluorapatite-Forming Calcium Phosphate Cements.

J Res Natl Inst Stand Technol

American Dental Association Foundation, Paffenbarger Research Center, National Institute of Standards and Technology, Gaithersburg, MD 20899, U.S.A.

Published: August 2010

This study reports for the first time in vitro and in vivo properties of fluorapatite (FA)-forming calcium phosphate cements (CPCs). The experimental cements contained from (0 to 3.1) mass % of F, corresponding to presence of FA at levels of approximately (0 to 87) mass %. The crystallinity of the apatitic cement product increased greatly with the FA content. When implanted subcutaneously in rats, the in vivo resorption rate decreased significantly with increasing FA content. The cement with the highest FA content was not resorbed in soft tissue, making it the first known biocompatible and bioinert CPC. These bioinert CPCs might be useful for applications where slow or no resorption of the implant is required to achieve the desired clinical outcome.

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http://www.ncbi.nlm.nih.gov/pmc/articles/PMC3072690PMC
http://dx.doi.org/10.6028/jres.115.020DOI Listing

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