title: A randomized controlled trial of implant-retained mandibular overdentures.
abstract: Evidence from randomized clinical trials of implant-retained overdentures is very limited at the present time. The aim of this study was to compare implant-retained mandibular overdentures and conventional complete dentures in a randomized controlled trial (RCT). Our a priori hypothesis was that implant-retained mandibular overdentures would be significantly better than conventional complete dentures. Edentulous patients (n = 118) were randomly allocated to either an Implant Group (n = 62) or a Denture Group (n = 56). Patients completed the Oral Health Impact Profile (OHIP) and a denture satisfaction scale pre-treatment and three months post-treatment. Upon completion of treatment, both groups reported improvement (p < 0.001, Wilcoxon Ranks Sum test) in oral-health-related quality of life and denture satisfaction. There were no significant post-treatment differences between the groups, but a treatment effect may be masked by application of "intention to treat" analysis. The OHIP change scores were significantly greater for patients receiving implants than for those who refused them.
authors.affiliation: National University of Ireland, Cork, Ireland. f.allen@ucc.ie
authors.forename: P F
authors.initials: PF
authors.lastname: Allen
authors.forename: J M
authors.initials: JM
authors.lastname: Thomason
authors.forename: N J A
authors.initials: NJ
authors.lastname: Jepson
authors.forename: F
authors.initials: F
authors.lastname: Nohl
authors.forename: D G
authors.initials: DG
authors.lastname: Smith
authors.forename: J
authors.initials: J
authors.lastname: Ellis
mesh_terms: D000367:Age Factors; D000368:Aged; D001294:Attitude to Health; D015921:Dental Implants; D019094:Dental Prosthesis, Implant-Supported; D003781:Denture Retention; D003826:Denture, Complete, Lower; D003828:Denture, Overlay; D005260:Female; D005500:Follow-Up Studies; D006801:Humans; D007575:Jaw, Edentulous / Q000534:rehabilitation; D008297:Male; D008334:Mandible; D008875:Middle Aged; D017060:Patient Satisfaction; D011788:Quality of Life; D016896:Treatment Outcome; D016312:Treatment Refusal
chemical_list: D015921:Dental Implants