title: Implant-supported single-tooth replacements: risk of implant and prosthesis failure.
abstract: Data from 236 patient cases of implant-supported single-tooth replacements in the maxillary anterior region were sequentially recorded and documented. The time in situ ranged from a minimum of five to a maximum of 19 years. Twenty-two implants failed during the observation period. The causes of such failure were peri-implantitis, implant fracture, and trauma. The probability of success according to the Kaplan-Meier method decreased to 0.89 over a period of 10 years. The failure rate for implants replacing lateral incisors was lower than that for implants replacing central incisors. Seventy-six cases were clinically documented for 10 years or more. In 15 cases, replacement of the prosthetic superstructure was necessary during the 10-year period. The course of therapy and clinical follow-up care is described by a multi-state distribution.
authors.affiliation: German Academy for Advanced Dental Education, Karlsruhe, Germany.
authors.forename: W
authors.initials: W
authors.lastname: Walther
authors.forename: J
authors.initials: J
authors.lastname: Klemke
authors.forename: M
authors.initials: M
authors.lastname: Wörle
authors.forename: M
authors.initials: M
authors.lastname: Heners
mesh_terms: D000293:Adolescent; D000328:Adult; D001751:Blade Implantation / Q000706:statistics & numerical data; D019250:Dental Implants, Single-Tooth / Q000009:adverse effects / Q000706:statistics & numerical data; D019232:Dental Restoration Failure; D005069:Evaluation Studies as Topic; D005260:Female; D006801:Humans; D007180:Incisor; D008297:Male; D010518:Periodontitis / Q000209:etiology; D019233:Retreatment; D012306:Risk; D016019:Survival Analysis