Bond strength of a composite resin to an adhesive luting cement

Brazilian Dental Journal

Taciana Marco Ferraz Caneppele¹  Lucas V. Zogheib¹  Isabela Gomes¹  Andressa S. Kuwana¹  Clóvis Pagani¹ 

[1] ,São Paulo State University São José dos Campos Dental School Department of Restorative DentistrySão José dos Campos SP ,Brazil

关键词: composite resin;    resin cement;    bond strength;    dental air abrasion;   

DOI  :  10.1590/S0103-64402010000400006

来源: SciELO

【 摘 要 】

This study evaluated the influence of surface treatment on the shear bond strength of a composite resin (CR), previously submitted to the application of a temporary cement (TC), to an adhesive luting cement. Eight-four CR cylinders (5 mm diameter and 3 mm high) were fabricated and embedded in acrylic resin. The sets were divided into 6 groups (G1 to G6) (n=12). Groups 2 to 6 received a coat of TC. After 24 h, TC was removed and the CR surfaces received the following treatments: G2: ethanol; G3: rotary brush and pumice; G4: air-abrasion; G5: air-abrasion and adhesive system; G6: air-abrasion, acid etching and adhesive system. G1 (control) did not receive TC or any surface treatment. The sets were adapted to a matrix and received an increment of an adhesive luting cement. The specimens were subjected to the shear bond strength test. ANOVA and Tukeyʼs tests showed that G3 (8.53 MPa) and G4 (8.63 MPa) differed significantly (p=0.001) from G1 (13.34 MPa). The highest mean shear bond strength values were found in G5 (14.78 MPa) and G6 (15.86 MPa). Air-abrasion of CR surface associated with an adhesive system provided an effective bond of the CR to the adhesive luting cement, regardless the pre-treatment with the phosphoric acid.

【 授权许可】

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