The Journal of Advanced Prosthodontics

The Korean Academy of Prosthodonitics (대한치과보철학회)
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Number of implants for mandibular implant overdentures: a systematic review

  • Lee, Jeong-Yol (Department of Prosthodontics, Institute for Clinical Dental Research, KUMC, Korea University) ;
  • Kim, Ha-Young (Department of Prosthodontics, Institute for Clinical Dental Research, KUMC, Korea University) ;
  • Shin, Sang-Wan (Department of Prosthodontics, Institute for Clinical Dental Research, KUMC, Korea University) ;
  • Bryant, S. Ross (Department of Prosthetics and Dental Geriatrics, Faculty of Dentistry, The University of British Columbia Vancouver)
  • Received : 2012.10.04
  • Accepted : 2012.11.12
  • Published : 2012.11.30
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Abstract

PURPOSE. The aim of this systematic review is to address treatment outcomes of Mandibular implant overdentures relative to implant survival rate, maintenance and complications, and patient satisfaction. MATERIALS AND METHODS. A systematic literature search was conducted by a PubMed search strategy and hand-searching of relevant journals from included studies. Randomized Clinical Trials (RCT) and comparative clinical trial studies on mandibular implant overdentures until August, 2010 were selected. Eleven studies from 1098 studies were finally selected and data were analyzed relative to number of implants. RESULTS. Six studies presented the data of the implant survival rate which ranged from 95% to 100% for 2 and 4 implant group and from 81.8% to 96.1% for 1 and 2 implant group. One study, which statistically compared implant survival rate showed no significant differences relative to the number of implants. The most common type of prosthetic maintenance and complications were replacement or reattaching of loose clips for 2 and 4 implant group, and denture repair due to the fracture around an implant for 1 and 2 implant groups. Most studies showed no significant differences in the rate of prosthetic maintenance and complication, and patient satisfaction regardless the number of implants. CONCLUSION. The implant survival rate of mandibular overdentures is high regardless of the number of implants. Denture maintenance is likely not inflenced substantially by the number of implants and patient satisfaction is typically high again regardless os the number of implants.

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References

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