Biological performance of calcium phosphate films formed on commercially pure Ti by electron-beam evaporation

Citation
Is. Lee et al., Biological performance of calcium phosphate films formed on commercially pure Ti by electron-beam evaporation, BIOMATERIAL, 23(2), 2002, pp. 609-615
Citations number
23
Language
INGLESE
art.tipo
Article
Categorie Soggetti
Multidisciplinary
Journal title
BIOMATERIALS
ISSN journal
0142-9612 → ACNP
Volume
23
Issue
2
Year of publication
2002
Pages
609 - 615
Database
ISI
SICI code
0142-9612(200201)23:2<609:BPOCPF>2.0.ZU;2-K
Abstract
Thin and defect-free Calcium phosphate films with a Ca/P ratio of 1.62 were formed by electron-beam evaporation. The as-deposited films had average bo nding strengths to the metal implants of 64.8 MPa and the dissolution rates of 47.5 nm/h in isotonic saline solutions. The interface mechanical charac teristics and histology of the as-machined, as-blasted, and calcium phospha te coating on the machined surfaces of commercially pure titanium were inve stigated. After a healing period of 12 weeks, the implants were unscrewed w ith a torque gauge instrument at the day of sacrifice, The coated sample sh owed a removal torque of 48.5 Ncm. (SD 5.4) compared to 32.3 Nem (SID 2.91) for the uncoated implant with the same surface roughness, and 47.3 Ncm (SD 5.8) for the grit blasted screw. The histomorphometric analyses of the cal cium-phosphate-coated implants revealed a mean of 52.4% (SID 6.3) as the hi ghest bone to implant contact. (C) 2001 Elsevier Science Ltd. All rights re served.