title: Assessment of the periotest device in baseline mobility measurements of craniofacial implants.
abstract: The present study aimed to evaluate reliability of the Periotest instrument in baseline mobility measurement of craniofacial implants in a human wet bone specimen. Sixteen 4.0-mm craniofacial Brånemark implants were placed in the most common sites for craniofacial implant placement. A 5.5-mm abutment was attached to each implant except one in the mastoid bone, which was connected with a bone-anchored hearing aid (BAHA) abutment. Baseline Periotest values (PTVs) were recorded on each abutment at different vertical measurement points by three different clinicians using three Periotest devices. Baseline PTVs for each abutment ranged between -1.23 and -5.90. Interoperator and interinstrumental variability did not influence PTVs; however, the vertical measurement point on the abutment proved to have a strong effect on PTV recordings.
authors.affiliation: Department of Oral Biology, University of Alberta, Edmonton, Canada.
authors.forename: K
authors.initials: K
authors.lastname: Derhami
authors.forename: J F
authors.initials: JF
authors.lastname: Wolfaardt
authors.forename: G
authors.initials: G
authors.lastname: Faulkner
authors.forename: M
authors.initials: M
authors.lastname: Grace
mesh_terms: D000368:Aged; D004582:Electronics, Medical / Q000295:instrumentation; D005069:Evaluation Studies as Topic; D005147:Facial Bones / Q000601:surgery*; D006801:Humans; D008297:Male; D008416:Mastoid / Q000601:surgery; D008437:Maxilla / Q000601:surgery; D020366:Methylmethacrylate; D008768:Methylmethacrylates; D009296:Nasal Cavity / Q000601:surgery; D015588:Observer Variation; D009915:Orbit / Q000601:surgery; D016348:Osseointegration; D010517:Periodontics / Q000295:instrumentation*; D019736:Prostheses and Implants; D015203:Reproducibility of Results; D012828:Silicones; D012886:Skull / Q000601:surgery*; D013193:Stainless Steel; D013314:Stress, Mechanical; D013701:Temporal Bone / Q000601:surgery
chemical_list: D008768:Methylmethacrylates; D012828:Silicones; D013193:Stainless Steel; D020366:Methylmethacrylate