title: The immediate rehabilitation by means of a ready-made final fixed prosthesis in the edentulous mandible: a 1-year follow-up study on 50 consecutive patients.
abstract: Although a two-stage procedure with symphyseal oral implants can lead to a long-term (15 years) 99% cumulative survival rate, a one-stage approach with immediate loading via prefabricated elements seems to offer a short-term acceptable outcome with significantly lower costs. A series of 50 consecutive patients, not eliminated for any systemic or smoking condition, received at the department of periodontology three implants in the symphyseal area, connected by a very rigid horse shoe-shaped titanium bar. A final screw retained prosthetic framework was placed on top of it at the department of prosthetic dentistry within 2 days after surgery (44) or after a delay, due to purely external factors, of up to 10 days (6). Forty-five patients were followed for 1 year. In one patient, all three implants failed and another four patients were lost to follow-up. The cumulative failure rates for implants and prostheses at 1 year were, respectively, 7.3% and 5%. The mean marginal bone loss at 1 year was 1.08 mm (SD: 1.62; range -5.68 to +2.55). This study shows that stable marginal bone levels can be maintained around immediately loaded implants in the lower jaw in an average patient population for at least 1 year. The survival rate is, however, lower than for a staged approach.
authors.affiliation: Department of Periodontology, School of Dentistry, Oral Pathology and Maxillo-Facial Surgery, Faculty of Medicine, Catholic University of Leuven, Leuven, Belgium. Daniel.vanSteenberghe@uz.kuleuven.ac.be
authors.forename: D
authors.initials: D
authors.lastname: van Steenberghe
authors.forename: L
authors.initials: L
authors.lastname: Molly
authors.forename: R
authors.initials: R
authors.lastname: Jacobs
authors.forename: B
authors.initials: B
authors.lastname: Vandekerckhove
authors.forename: M
authors.initials: M
authors.lastname: Quirynen
authors.forename: I
authors.initials: I
authors.lastname: Naert
mesh_terms: D000368:Aged; D000369:Aged, 80 and over; D016301:Alveolar Bone Loss / Q000145:classification; D015519:Bone Density / Q000502:physiology; D003758:Dental Implantation, Endosseous / Q000379:methods; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D019232:Dental Restoration Failure; D003779:Denture Design; D003781:Denture Retention; D003826:Denture, Complete, Lower; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation* / Q000601:surgery; D008297:Male; D008334:Mandible / Q000601:surgery*; D008875:Middle Aged; D012907:Smoking; D018709:Statistics, Nonparametric; D016019:Survival Analysis; D014025:Titanium; D016896:Treatment Outcome
chemical_list: D015921:Dental Implants; D014025:Titanium