Compatibility of five self-etching adhesive systems with two resin luting cements.
OBJECTIVE
The aim of this study was to evaluate the compatibility between five self-etching bonding systems (SEBSs) and two resin luting cements (RLCs) assessed by use of an in vitro dentin shear bond test.


METHODS
The selected RLCs were: Variolink II in a dual-cure mode and Multilink in a self-cure mode. The SEBSs combined with the RLCs were: two one-step SEBSs (One Up Bond F and Xeno III) and three two-step SEBSs (Clearfil SE Bond, Unifil Bond, and Xeno III primer coupled with Clearfil SE Bond bonding resin as an experimental combination). One hundred fifty human molars were divided into ten groups of fifteen samples each. The samples were tested in shear after seven days of storage at 100% RH and 37°C. After each test, the failure mode was recorded.


CONCLUSIONS
Significant differences in shear bond strength (SBS) were observed according to both the curing mode of the RLC and the adhesive. The one-step systems Xeno III and One Up Bond F revealed a total incompatibility when bonded with the chemical-curing RLC. Conversely, the two-step SEBSs were compatible with chemical and dual-curing RLC. Failure modes and shear values were in good agreement. A positive correlation was found between the pH of the tested adhesive solutions or resins and the SBS data
Schittly
Estelle
E
University of Reims Champagne, 51100 Reims, France. estelle.schittly@wanadoo.fr
Bouter
Denis
D
Le Goff
Stephane
S
Degrange
Michel
M
Attal
Jean-Pierre
JP
D016009:Chi-Square Distribution; D001840:Dental Bonding; D045662:Dental Etching / Q000379:methods; D003799:Dental Stress Analysis; D003804:Dentin; D004344:Drug Incompatibility; D006801:Humans; D008422:Materials Testing; D008963:Molar; D019279:Resin Cements / Q000737:chemistry*; D055116:Self-Curing of Dental Resins; D033081:Shear Strength; D018709:Statistics, Nonparametric; D014025:Titanium
D019279:Resin Cements; D014025:Titanium