title: Preliminary evaluation of titanium-coated PEEK dental implants.
abstract: A total of 40 titanium-coated and uncoated polyetheretherketone (PEEK) cylindrical implants was placed in unicortical sites in the femurs of four mongrel dogs. The implants were evaluated mechanically and histologically at periods of four and eight weeks. Interface attachment strength was determined for each specimen, as were measurements of bone contact, porosity, bone ingrowth, inflammatory response, and mode of failure. Statistical analysis revealed that the uncoated implants had a significantly higher interface shear strength at four weeks, but that there was no significant difference from the coated implants at eight weeks. At both four and eight weeks, the titanium-coated specimens had significantly higher percentages of bone contact. There was no significant increase in bone contact between four and eight weeks for either the coated or uncoated specimens.
authors.affiliation: Department of Orthopaedic Surgery, Tulane Medical School, New Orleans, Louisiana 70112, USA.
authors.forename: S D
authors.initials: SD
authors.lastname: Cook
authors.forename: A M
authors.initials: AM
authors.lastname: Rust-Dawicki
mesh_terms: D000704:Analysis of Variance; D000818:Animals; D001577:Benzophenones; D015921:Dental Implants; D017267:Dental Prosthesis Design; D004285:Dogs; D005069:Evaluation Studies as Topic; D005269:Femur; D007659:Ketones; D008422:Materials Testing; D008855:Microscopy, Electron, Scanning; D016348:Osseointegration; D011092:Polyethylene Glycols; D011108:Polymers; D013499:Surface Properties; D014025:Titanium
chemical_list: D001577:Benzophenones; D015921:Dental Implants; D007659:Ketones; D011108:Polymers; C063834:polyetheretherketone; D011092:Polyethylene Glycols; D014025:Titanium