A Randomized Controlled Trial of Implant-retained Mandibular Overdentures

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 imp...

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Bibliographic Details
Published in:Journal of dental research 2006-06, Vol.85 (6), p.547-551
Main Authors: Allen, P.F., Thomason, J.M., Jepson, N.J.A., Nohl, F., Smith, D.G., Ellis, J.
Format: Article
Language:English
Subjects:
Age Factors
Aged
Attitude to Health
Dental Implants
Dental Prosthesis, Implant-Supported
Dentistry
Denture Retention
Denture, Complete, Lower
Denture, Overlay
Female
Follow-Up Studies
Humans
Jaw, Edentulous - rehabilitation
Male
Mandible
Middle Aged
Patient Satisfaction
Quality of Life
Treatment Outcome
Treatment Refusal
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Summary: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.
ISSN:0022-0345
1544-0591
DOI:10.1177/154405910608500613