Influence of desensitizing agents on the microshear bond strength of adhesive systems to dentin.
The aim of this study was to evaluate the effect of desensitizing agents on the micro-shear bond strength of adhesive systems to dentin. Forty bovine teeth were divided into 8 groups (n=5): G1--Single Bond (SB); G2--GH.F + SB; G3-- Desensibilize + SB; G4--essensiv + SB; G5 --ingle Bond 2 (SB2); G6--H.E + SB2; G7--esensibilize + SB2; G8--Dessensiv + SB2. In all of the groups, the desensitizing agents were applied after phosphoric acid etching and before the dentin adhesive application. Z250 composite resin tubes were bonded on the treated surface. After 24 hours, the teeth were tested in a universal machine. Data were submitted to ANOVA and Tukey's test (5%). The results showed that the groups where Desensibilize and Dessensiv were applied exhibited smaller bond strength values.
Maeda
Fernando A
FA
Department of Dental Materials and Prosthodontics, São Paulo State University, Araçatuba School of Dentistry, UNESP, Brazil.
Guedes
Ana P A
AP
Catelan
Anderson
A
Pavan
Sabrina
S
Briso
André L F
AL
Sundfeld
Renato H
RH
dos Santos
Paulo H
PH
D000134:Acid Etching, Dental / Q000009:adverse effects; D000818:Animals; D002417:Cattle; D001840:Dental Bonding; D003799:Dental Stress Analysis; D003807:Dentin Sensitivity / Q000209:etiology / Q000517:prevention & control*; D017220:Dentin-Bonding Agents; D008422:Materials Testing; D009566:Nitrates / Q000627:therapeutic use; D017680:Potassium Compounds / Q000627:therapeutic use; D019279:Resin Cements; D033081:Shear Strength; D013324:Strontium / Q000627:therapeutic use
D017220:Dentin-Bonding Agents; D009566:Nitrates; D017680:Potassium Compounds; D019279:Resin Cements; C025700:strontium chloride; C023844:potassium nitrate; D013324:Strontium