Biofilm affecting the mechanical integrity of implant-abutment joints

• Autores: Jorge Pereira, Abraão M. Prado, Bruno Henriques, César A.M. Benfatti
• Localización: The International Journal of Prosthodontics, ISSN-e 1942-4426, Vol. 29, Nº. 4, 2016, págs. 381-383
• Idioma: inglés
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• Resumen

  • Purpose: This in vitro study evaluated the effect of biofilms on abutment torque loss and wear of implant internal connection surfaces.

    Materials and Methods: Morse taper abutments were torqued to corresponding implants and then the implant-abutment assemblies were immersed in a biofilm medium for 72 hours. After detorque evaluation, the abutments were removed and the inner implant surfaces were observed via scanning electron microscopy and profilometry.

    Results: The removal torque values and the implant damaged areas decreased after contact with biofilms.

    Conclusion: The lubricating effect of biofilms decreased the friction between contacting surfaces, negatively affecting the mechanical integrity of the implant-abutment connection