title: Bone quality and implant design-related outcomes through stage II surgical uncovering of Spectra-System root form implants.
abstract: Failure rates at second-stage surgery were reported for the ongoing Dental Implant Clinical Research Group studies of the Spectra-System (Core-Vent Corporation, Las Vegas, NV) implants. As of May 1995, 69 implants failed out of 2,633 placed and uncovered. The overall failure rate was 2.6%, with 3.6% in bone quality 1 (BQ-1), 2.4% in BQ-2, 2.5% in BQ-3, and 3.1% in BQ-4. HA-coated cylinders had the lowest number of failures and titanium alloy baskets the highest. The basket design failed more often in the posterior jaw areas; 9 of 32 clinical centers (28%) accounted for 72% of these failures.
authors.affiliation: Department of Veterans Affairs Medical Center, Northport, NY, USA.
authors.forename: R S
authors.initials: RS
authors.lastname: Truhlar
authors.forename: S E
authors.initials: SE
authors.lastname: Farish
authors.forename: L E
authors.initials: LE
authors.lastname: Scheitler
authors.forename: H F
authors.initials: HF
authors.lastname: Morris
authors.forename: S
authors.initials: S
authors.lastname: Ochi
mesh_terms: D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D000497:Alloys; D015519:Bone Density; D003722:Dental Alloys; D003758:Dental Implantation, Endosseous; D015921:Dental Implants; D019250:Dental Implants, Single-Tooth; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D017886:Durapatite; D005260:Female; D006801:Humans; D007568:Jaw / Q000473:pathology*; D007575:Jaw, Edentulous / Q000473:pathology / Q000601:surgery; D007576:Jaw, Edentulous, Partially / Q000473:pathology / Q000601:surgery; D008137:Longitudinal Studies; D008297:Male; D008334:Mandible / Q000473:pathology / Q000601:surgery; D008437:Maxilla / Q000473:pathology / Q000601:surgery; D008875:Middle Aged; D056948:Orthognathic Surgical Procedures; D016348:Osseointegration; D011446:Prospective Studies; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D000497:Alloys; D003722:Dental Alloys; D015921:Dental Implants; C031462:titanium alloy (TiAl6V4); D017886:Durapatite; D014025:Titanium