title: Performance of sintered, porous-surfaced, press-fit implants after 10 years of function in the partially edentulous posterior mandible.
abstract: This article updates the results of a prospective clinical trial of press-fit, sintered, porous-surfaced dental implants placed in the posterior mandible of partially edentulous patients. Implants used had overall lengths (including transgingival collar regions) of 7 or 9 mm with designed intrabony lengths (lengths of sintered surface in contact with bone) of 6 or 8 mm. Forty-eight implants were placed in 24 patients, the majority of which replaced molar teeth, and the mean crown-to-root ratio was 1.4. Over 10 years of implant function, 2 patients with 3 implants died and 3 patients with 4 implants were lost to follow-up because of infirmity or relocation. The survival and success rates were both 95.5%. Two implants failed; the mean cumulative crestal bone loss (measured from the implant-abutment interface) for the remaining implants was 1.2 mm. Crestal bone loss was not affected by the crown-to-root ratio, prosthesis design, or whether an implant was the most distal unit in a sextant. However, there was a trend for greater crestal bone loss when implants were opposed by implants rather than by natural teeth.
authors: Faculty of Dentistry, University of Toronto, 124 Edward St., Toronto, Ontario, Canada. douglas.deporter@utoronto.ca
authors: Douglas A
authors: DA
authors: Deporter
authors: Jaffer
authors: J
authors: Kermalli
authors: Reynaldo
authors: R
authors: Todescan
authors: Eshetu
authors: E
authors: Atenafu
mesh_terms: D000328:Adult; D000368:Aged; D016301:Alveolar Bone Loss / Q000209:etiology; D003442:Crowns; D059605:Dental Implant-Abutment Design; D015921:Dental Implants; D017267:Dental Prosthesis Design; D019232:Dental Restoration Failure; D020878:Device Removal; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007576:Jaw, Edentulous, Partially / Q000534:rehabilitation / Q000601:surgery; D008297:Male; D008334:Mandible / Q000601:surgery*; D008875:Middle Aged; D016062:Porosity; D011446:Prospective Studies; D016300:Radiography, Bitewing; D019252:Radiography, Dental, Digital; D013499:Surface Properties; D016019:Survival Analysis; D016896:Treatment Outcome; D055815:Young Adult
chemical_list: D015921:Dental Implants