Cemented Single Crown Retention on Dental Implants:: An In Vitro Study

• Autores: Stefan Rues, Stefani T. Kappel, Peter Rammelsberg, Melissa Fugina
• Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Vol. 30, Nº. 2, 2017, págs. 133-135
• Idioma: inglés
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• Resumen

  • Purpose: The aim of this study was to determine the influence of selected cements, abutment heights, and aging on the retention of zirconia crowns on zirconia abutments.

    Materials and Methods: Zirconia crowns and abutments (height: 4.0 or 5.5 mm) were sandblasted and retained using five different cements. Axial pull-off tests were performed after thermocycling or 3 days of water storage.

    Results: An increase in abutment height was associated with an increase in decementation force when permanent cementation was tested. The aging protocol showed that temporarily cemented crowns showed a significant retention decrease, while use of a permanent cement led to a moderate increase.

    Conclusion: Only use of permanent cements ensures clinically adequate decementation forces.