Antibacterial properties of self-etching dental adhesive systems.
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.
Feuerstein
Osnat
O
Department of Prosthodontics, Faculty of Dental Medicine, Hebrew University, Jerusalem, Israel.
Matalon
Shlomo
S
Slutzky
Hagay
H
Weiss
Ervin I
EI
D000269:Adhesives / Q000737:chemistry*; D000900:Anti-Bacterial Agents / Q000737:chemistry*; D003764:Dental Materials / Q000737:chemistry*; D013295:Streptococcus mutans / Q000187:drug effects
D000269:Adhesives; D000900:Anti-Bacterial Agents; D003764:Dental Materials