Surface Chemistry of Sintered Hydroxyapatite: On Possible Relations with Biodegradation and Slow Crack Propagation
Ceramics with compositions resembling those of inorganic phases in bone and tooth tissue have been considered for clinical use since the end of the last century. Dreesman (1) applied Plaster of Paris (CaSO4) to fill bony defects in patients. Since then, calciumphosphate has been advocated regularly as a suitable bioceramic to replace bone. However, it degrades too fast for new bone to fill the empty spaces left behind, so that it never became a widely accepted substitute for autologous bone. (2).
KeywordsSurface Chemistry Fatigue Failure Tooth Tissue Solubility Rate Ionic Dissolution
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- 1.H.Dreesman, Uber Knochenplombierung, Beitr.Klin.Chir. 9: 804 1894.Google Scholar
- 2.J.W.Frame, Resorption characteristics of calciumsulphate implants, J.Dent.Res. 53: Abstr. 81, 1974.Google Scholar
- 4.R.Pampuch, Ceramic Materials, Elsevier Amsterdam, 1976.Google Scholar
- 5.K.de Groot, Presentation NIH Consensus Conference on Clinical Biomaterials, Bethesda, 1982 (Nov.1–3).Google Scholar
- 6.F.C.M.Driessens, Probable Phase Composition of the mineral in bone, Z.Naturforsch 35c: 357 1980.Google Scholar
- 7.K.de Groot, Degradable Ceramics, in: Biocompatibility of Clinical Implant Materials, Vol I, D.F.Williams, Ed., CRC Press, Boca Raton, USA, 1981.Google Scholar