J Korean Acad Conserv Dent.  2009 Mar;34(2):113-119. 10.5395/JKACD.2009.34.2.113.

Effect of dentin surface wetness on tensile bond strength of self adhesive resin cements

• Yoon SY
• Park SH
• Kim JW
• Cho KM

• KMID: 2294352
• DOI: http://doi.org/10.5395/JKACD.2009.34.2.113

Abstract

The purpose of this study was to compare the tensile bond strength of several self-adhesive resin cements bonded to dentin surfaces with different wet conditions. Three self-adhesive resin cements; Rely-X Unicem (3M ESPE, St. Paul, MN, USA), Embrace Wetbond (Pulpdent, Oakland, MA, USA), Maxcem (Kerr, Orange, CA, USA) were used. Extracted sixty human molars were used. Each self-adhesive resin cement was adhered to the dentin specimens (two rectangular sticks from each molar) in different wet conditions. Tensile bond strength were measured using universal testing machine (EZ Test, Shimadzu corporation, Kyoto, Japan) at a crosshead speed of 1.0mm/min. After the testing, bonding failures of specimens were observed by Operative microscope (OPMI pro, Carl Zeiss, Oberkochen, Germany). T-test was used to evaluate the effect of dentin surface wetness. One-way ANOVA test was used to evaluate the tensile bond strength of self-adhesive resin cements in the same condition. Scheffe's test was used for statistical analyzing at the 95% level of confidence. The result showed that wetness of dentin surface didn't affect tensile bond strength of self-adhesive resin cements and Maxcem showed the lowest tensile bond strength.

Keyword

Self-adhesive resin cements; Tensile bond strength; Dentin surface wetness

MeSH Terms

Adhesives
Citrus sinensis
Collodion
Dentin
Humans
Molar
Resin Cements
Adhesives
Collodion
Resin Cements