Antimicrobial activity of ProRoot MTA in contact with blood

Research output: Contribution to journalArticle

Authors

Colleges, School and Institutes

External organisations

  • Department of Restorative Dentistry, Faculty of Dental Surgery, University of Malta, Msida, Malta.
  • Department of Stomatology, Faculty of Dentistry, University of Granada, Campus Cartuja s/n, Colegio Máximo 18071, Granada, Spain.
  • Department of Microbiology, Faculty of Dentistry, University of Granada, Campus Cartuja s/n, Colegio Máximo 18071, Granada, Spain.

Abstract

Dental materials based on Portland cement, which is used in the construction industry have gained popularity for clinical use due to their hydraulic properties, the interaction with tooth tissue and their antimicrobial properties. The antimicrobial properties are optimal in vitro. However in clinical use contact with blood may affect the antimicrobial properties. This study aims to assess whether antimicrobial properties of the Portland cement-based dental cements such as mineral trioxide aggregate (MTA) are also affected by contact with blood present in clinical situations. ProRoot MTA, a Portland cement-based dental cement was characterized following contact with water, or heparinized blood after 1 day and 7 days aging. The antimicrobial activity under the mentioned conditions was assessed using 3 antimicrobial tests: agar diffusion test, direct contact test and intratubular infection test. MTA in contact with blood was severely discoloured, exhibited an additional phosphorus peak in elemental analysis, no calcium hydroxide peaks and no areas of bacterial inhibition growth in the agar diffusion test were demonstrated. ProRoot MTA showed limited antimicrobial activity, in both the direct contact test and intratubular infection test. When aged in water ProRoot MTA showed higher antimicrobial activity than when aged in blood. Antimicrobial activity reduced significantly after 7 days. Further assessment is required to investigate behaviour in clinical situations.

Details

Original languageEnglish
Pages (from-to)41359
JournalScientific Reports
Volume7
Early online date27 Jan 2017
Publication statusE-pub ahead of print - 27 Jan 2017

Keywords

  • Microbiology techniques, Biomedical materials