title: Antibacterial properties of self-etching dental adhesive systems.
abstract: BACKGROUND
  Dental adhesives with antibacterial properties may reduce recurrent or secondary caries. The authors conducted a study to examine the immediate and long-lasting antibacterial properties of four self-etching adhesive systems.
  
  
  METHODS
  The authors used the agar diffusion test (ADT) and direct contact test (DCT) to measure the antibacterial properties of AdheSe (Ivoclar Vivadent, Schaan, Liechtenstein), Adper Prompt L-Pop (3M ESPE, Seefeld, Germany), Clearfil Protect Bond (Kuraray, Kurashiki, Okayama, Japan) and Xeno III (Dentsply, Konstanz, Germany) on Streptoccocus mutans after aging samples in phosphate-buffered saline for one, two, seven and 14 days.
  
  
  RESULTS
  Only Clearfil Protect Bond showed an inhibition halo in the ADT. In the DCT, fresh samples of all of the tested materials exhibited potent antibacterial properties, which were maintained by AdheSe for one day and Clearfil Protect Bond for seven days. None of the adhesive systems exhibited any antibacterial properties after 14 days.
  
  
  CONCLUSIONS
  All of the tested adhesives had an immediate bactericidal effect on S. mutans. None, however, had long-lasting antibacterial properties.
  
  
  CONCLUSIONS
  The application of self-etching adhesive materials could contribute to the immediate elimination of residual bacteria. The likelihood of developing secondary caries as a consequence of bacterial microleakage may not be affected by the use of the adhesive systems tested in this study.
authors.affiliation: Department of Prosthodontics, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel.
authors.forename: Osnat
authors.initials: O
authors.lastname: Feuerstein
authors.forename: Shlomo
authors.initials: S
authors.lastname: Matalon
authors.forename: Hagay
authors.initials: H
authors.lastname: Slutzky
authors.forename: Ervin I
authors.initials: EI
authors.lastname: Weiss
mesh_terms: D000269:Adhesives / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D013295:Streptococcus mutans / Q000187:drug effects
chemical_list: D000269:Adhesives; D000900:Anti-Bacterial Agents; D003764:Dental Materials