title: Retrievable, tooth-implant-supported, complete-arch fixed restorations in the maxilla: a 6-year retrospective study.
abstract: The aim of this retrospective study was to evaluate the survival rate of implants, abutment teeth, and suprastructures along with the management of the complications for complete-arch, semipermanent cemented tooth-implant-supported restorations in 44 maxillae. Permanent cemented copings protect the prepared teeth from caries. The metal-ceramic fixed dental prostheses (FDPs) were cemented onto copings and implant abutments using acryl-urethane cement. Data were assessed via patient records and a final clinical examination. Six years after cementation, no implant or restoration had failed. After the extraction of two teeth and placement of an additional implant, three restorations had to be subsequently changed (89% of restorations were unchanged after 6 years). The loss of retention without tooth intrusion occurred in two restorations. All 23 restoration removals for prosthetic aftercare were non-destructive. The results of this study indicate that complete-arch, semipermanently cemented FDP rigidly connecting the maxillary teeth and implants are a reliable treatment option.
authors.affiliation: Department of Prosthodontics, Gerodontology, and Biomaterials, Center of Oral Health, University of Greifswald, Greifswald, Germany. mundt@uni-greifswald.de
authors.forename: Torsten
authors.initials: T
authors.lastname: Mundt
authors.forename: Friedhelm
authors.initials: F
authors.lastname: Heinemann
authors.forename: Christian
authors.initials: C
authors.lastname: Schwahn
authors.forename: Reiner
authors.initials: R
authors.lastname: Biffar
mesh_terms: D000328:Adult; D000368:Aged; D001862:Bone Resorption / Q000000981:diagnostic imaging / Q000209:etiology*; D003738:Dental Cements / Q000627:therapeutic use*; D019250:Dental Implants, Single-Tooth / Q000009:adverse effects*; D017267:Dental Prosthesis Design; D017268:Dental Prosthesis Retention / Q000295:instrumentation / Q000379:methods; D019094:Dental Prosthesis, Implant-Supported / Q000009:adverse effects*; D019232:Dental Restoration Failure; D003830:Denture, Partial, Fixed / Q000009:adverse effects*; D005260:Female; D006801:Humans; D008137:Longitudinal Studies; D008297:Male; D008437:Maxilla / Q000000981:diagnostic imaging / Q000601:surgery*; D008875:Middle Aged; D011859:Radiography; D012189:Retrospective Studies; D016896:Treatment Outcome
chemical_list: D003738:Dental Cements