In vivo performance of a modified CSTi dental implant coating.
Cylindrical dental implants coated with cancellous structured titanium (CSTi) were studied in a dog model. CSTi-2-coated and hydroxyapatite-coated (HA) implants were placed in 8 mongrel dogs. The porosity of the CSTi-2 coating was 9% less than that of the previously studied CSTi-1, resulting in greatly improved mechanical strength and cosmetic appearance. A slightly lower level of bone ingrowth was observed for CSTi-2 than for CSTi-1. However, the in vivo attachment strength of the CSTi-2 coating was comparable both to CSTi-1 and to an HA-coated control after 8 weeks. Measured porosity is technique dependent; digital analysis of in vitro samples yielded higher porosity values than in vivo histology cross sections.
Story
B J
BJ
Sulzer Calcitek Inc, Carlsbad, CA 92008, USA.
Wagner
W R
WR
Gaisser
D M
DM
Cook
S D
SD
Rust-Dawicki
A M
AM
D000818:Animals; D020099:Coated Materials, Biocompatible / Q000737:chemistry; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D017267:Dental Prosthesis Design; D004195:Disease Models, Animal; D004285:Dogs; D017886:Durapatite / Q000737:chemistry; D004955:Esthetics, Dental; D005269:Femur / Q000473:pathology / Q000601:surgery; D007091:Image Processing, Computer-Assisted; D008334:Mandible / Q000473:pathology / Q000601:surgery; D008855:Microscopy, Electron, Scanning; D016348:Osseointegration; D016062:Porosity; D013314:Stress, Mechanical; D013499:Surface Properties; D013718:Tensile Strength; D013997:Time Factors; D014025:Titanium / Q000737:chemistry
D020099:Coated Materials, Biocompatible; D015921:Dental Implants; D017886:Durapatite; D014025:Titanium