Summary Review/Restorative
Evidence-Based Dentistry (2008) 9, 22. doi:10.1038/sj.ebd.6400568
Implant supported dentures and masticatory performance
Do implant retained or supported dentures improved masticatory performance
Address for Correspondence; Dr Kenji Fueki, Removable Partial Denture Prosthodontics, Tokyo Medical and Dental University, 1-5-45 Yushima, Bunkyo-ku,Tokyo, 113-8549, Japan. E-mail: kunfu.rpro@tmd.ac.jp.
Bjarni E. Pjetursson1
1Department of Prosthodontics, University of Iceland, Reykjavik, Iceland
Fueki K, Kimoto K, Ogawa T, Garrett NR. Effect of implant-supported or retained dentures on masticatory performance: A systematic review. J Prosthet Dent. 2007 Dec; 98(6):470–7.
Abstract
Data Sources
Medline, Cochrane Library
Study Selection
English articles published from 1966 to June 2007, in which the masticatory performance of subjects with implant-supported or retained dentures was assessed by objective methods and compared to performance with conventional dentures, were included. Single-toth implants studies were excluded.
Data Extraction and Synthesis
Characteristics of subjects, type of dentures, and quantitative results were extracted from original articles. Level of evidence was rated by 2 authors following the United States Agency for Healthcare Research and Quality (AHRQ, www.ahrq.gov/) recommendations
Results
18 articles met the criteria for inclusion. Experimental studies showed:
1. fixed implant-supported partial dentures do not provide significant improvement in masticatory performance compared to conventional removable partial dentures for Kennedy Class I and II partially edentulous mandibles;
2. the combination of a mandibular implant-supported or retained overdenture (IOD) and maxillary conventional complete denture (CD) provides significant improvement in masticatory performance compared to CDs in both the mandible and maxilla for a limited population having persistent functional problems with an existing mandibular CD due to severely resorbed mandible; and
3. the type of implant and attachment system for mandibular IODs has a limited impact.
Well-designed; quasi-experimental studies showed ;
1. mandibular fixed implant-supported complete dentures provide significant improvement in masticatory performance compared to mandibular CDs in subjects dissatisfied with their CDs; and
2. implant-supported mandibular resection dentures have an advantage over conventional dentures in masticatory performance on the defect side of the mouth.
Conclusions
While a number of studies on masticatory performance have been conducted in patients with various designs of implant-supported or retained dentures, high-level evidence supporting advantages in masticatory performance of implant-supported or retained dentures over conventional dentures is limited.
