Quality of Life of Implant-Supported Overdenture and Conventional Complete Denture in Restoring the Edentulous Mandible: A Systematic Review
Implant Dentistry:  December 2017 - Volume 26 - Issue 6 - p 945–950
doi: 10.1097/ID.0000000000000668
Meta-Analyses and Systematic Reviews
Objective: The aim of this systematic review was to 
evaluate the oral health-related quality of life (OHRQoL) associated 
with an implant-supported overdenture (IOD) compared with a conventional
 complete denture (CCD) in restoring the edentulous mandible.
Methods: A literature search was performed in the 
MEDLINE (through Ovid), PubMed, and Cochrane Library databases for 
articles published between 1990 and July 2016. The search was restricted
 to articles published in English. Two reviewers selected the articles 
based on the inclusion and exclusion criteria. Another 2 reviewers 
analyzed the data.
Results: From 108 articles that were obtained, 5 
articles met the inclusion criteria. Four studies had a high risk of 
bias, and 1 study had an unclear risk of bias. There was a significant 
difference in Oral Health Impact Profile (OHIP) scores between pre- and 
post-treatment within the groups and in posttreatment OHIP scores 
between IOD and CCD groups.
Conclusion: Regarding the edentulous mandible, 
patients benefited more from the IOD with 2 implants, as determined by 
OHRQoL scores. Considering the differences between each domain of the 
Oral Health Impact Profile (OHIP) questionnaire and the lack of 
long-term performance, more random control trials with sufficient sample
 sizes need to be designed to investigate long-term performance after 
treatment.
Comments