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Volume 24 , Issue 2
March/April 2011

Pages 109–117

Survival Rates of Teeth, Implants, and Double Crown–Retained Removable Dental Prostheses: A Systematic Literature Review

Beatrice Koller, DDS, Dr Med Dent/Wael Att, DDS, Dr Med Dent, PhD/Jörg-Rudolf Strub, DDS, Dr Med Dent, Dr (hc), PhD

PMID: 21479275

Purpose: The aim of this systematic literature review was to investigate the survival rates of teeth, implants, and double crown–retained removable dental prostheses (RDPs). Materials and Methods: A systematic review of the literature published from January 1973 through May 2010 was conducted using electronic databases and hand-searching to assess the clinical outcomes of teeth, implants, and double crown–retained RDPs. Results: This review yielded 512 articles, which were narrowed down to 11. The included studies demonstrated tooth survival rates between 60.6% and 95.3% after an observation period of 4 to 10 years. The survival rates of RDPs supported by teeth ranged between 90.0% and 95.1% after 4 and 5.3 years, respectively. The survival rates of implants supporting prostheses in the mandible were between 97% and 100% after an observation period between 3 and 10.4 years. The survival rates of implant-retained RDPs in the mandible ranged between 95% and 100% after 9 and 10.4 years. Teeth and implants supporting prostheses in the maxilla, as well as the RDPs themselves, demonstrated a survival rate of 100% after 3.2 years. Conclusion: The current literature does not provide sufficient information regarding the long-term outcome of double crown–retained RDPs. Further studies based on a higher level of evidence are needed to validate the outcomes of this treatment modality. Int J Prosthodont 2011;24:109–117.

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