title: Implant surface coating and bone quality-related survival outcomes through 36 months post-placement of root-form endosseous dental implants.
abstract: Survival rates from placement to 36 months were reported for the ongoing Dental Implant Clinical Research Group studies of root-form endosseous dental implants. Failure rates for all implants were similar in bone qualities 1 and 2 (6.2% and 6.7%, respectively) and slightly higher in bone qualities 3 and 4 (8.5% and 8.7%, respectively). Hydroxyapatite (HA)-coated implants had an overall failure rate of 3.9% over 36 months in all bone qualities combined, while non-coated implants had a 13.4% failure rate for the same parameters. For each bone quality, there was a significant difference in implant survival for the non-coated implants (P < 0.01). The highest failure rates for non-coated implants were in bone qualities 3 and 4 (19.1% and 25.5%, respectively). No major difference in survival was found for HA-coated implants placed in each bone quality. Possible reasons for the differences in survival are discussed.
authors.affiliation: Department of Veterans Affairs Medical Center, Northport, NY, USA.
authors.forename: R S
authors.initials: RS
authors.lastname: Truhlar
authors.forename: H F
authors.initials: HF
authors.lastname: Morris
authors.forename: S
authors.initials: S
authors.lastname: Ochi
mesh_terms: D000134:Acid Etching, Dental; D000497:Alloys; D015519:Bone Density; D001862:Bone Resorption / Q000473:pathology; D020099:Coated Materials, Biocompatible / Q000737:chemistry*; D000044:Dental Abutments; D003722:Dental Alloys / Q000737:chemistry; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D017886:Durapatite / Q000737:chemistry; D005500:Follow-Up Studies; D006801:Humans; D007575:Jaw, Edentulous / Q000473:pathology* / Q000534:rehabilitation; D007576:Jaw, Edentulous, Partially / Q000473:pathology* / Q000534:rehabilitation; D016014:Linear Models; D008137:Longitudinal Studies; D008334:Mandible / Q000473:pathology*; D008437:Maxilla / Q000473:pathology*; D013499:Surface Properties; D016019:Survival Analysis; D014025:Titanium / Q000737:chemistry; D016896:Treatment Outcome; D014945:Wound Healing
chemical_list: D000497:Alloys; D020099:Coated Materials, Biocompatible; D003722:Dental Alloys; D015921:Dental Implants; C031462:titanium alloy (TiAl6V4); D017886:Durapatite; D014025:Titanium