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Brazilian Journal of Oral Sciences
Piracicaba Dental School - UNICAMP
EISSN:
Vol. 6, No. 22, 2007, pp. 1376-1382
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Bioline Code: os07025
Full paper language: English
Document type: Research Article
Document available free of charge
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Brazilian Journal of Oral Sciences, Vol. 6, No. 22, 2007, pp. 1376-1382
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Interaction between total-etch and self-etch adhesives and conventional and self-adhesive resin cements
Torres, Carlos Rocha Gomes; Pinto, Léia Quintanilha; Leonel, André Gilberto; Pucci, César Rogério & Borges, Alessandra Bühler
Abstract
The aim of this study was to compare the bond strength to enamel
between resin cements combined with total-etch and self-etch adhesive
systems and a self-adhesive cement. Eighty bovine incisors had their
buccal surface ground flat exposing a plane area in the enamel. Eighty
Artglass resin cylinders measuring 3 mm in diameter and 4 mm in
height were fabricated. The teeth were divided into eight groups of 10
teeth each and the resin cylinders were cemented with different adhesive
systems and resin cements: G1: RelyX Unicem (self-adhesive cement);
G2: H3PO4 + Single Bond + RelyX ARC; G3: AdheSE + Variolink II;
G4: H3PO4 + Excite + Variolink II; G5: Xeno III + Enforce; G6: H3PO4
+ Prime&Bond NT + Enforce; G7: Bistite Primers 1 and 2 + Bistite II
DC; G8: H3PO4 + Bistite Primers 1 and 2 + Bistite II DC. After
application of the adhesives, the cylinders were cemented according to
manufacturer instructions. The specimens were submitted to 2000
thermal cycles at a temperature ranging from 5±5°C to 55±5°C, and
shear bond strength was then tested at a velocity of 1 mm/min. The
data were analyzed by ANOVA and the Tukey's test (á=5%), obtaining
a p value of 0.00. The following mean (±standard deviation) bond
strength values were observed for each group: G1: 5.14(±0.99)a; G3:
16.23(±4.69)b; G7: 17.82(±3.66)b; G5: 18.48(±2.88)bc; G8:
20.15(±4.12)bc; G4: 22.85(±3.08)cd; G2: 24.96(±2.89)d; G6:
26.07(±1.69)d. Groups followed by the same letters did not differ
significantly. For most of the resin cements tested, the application of
adhesive systems using acid etching resulted in a higher bond strength
when compared to the self-etch adhesive systems and to the selfadhesive
cement.
Keywords
cementation, shear strength, dental enamel
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