Tensile bond strength of different adhesive systems to enamel and dentin

Brazilian Dental Journal

Wanessa Christine Souza-zaroni¹  Letícia Caliento Seixas¹  Juliane Cristina Ciccone-nogueira¹  Daniela Thomazatti Chimello¹  Regina Guenka Palma-dibb¹ 

[1] ,University of São Paulo School of Dentistry of Ribeirão Preto Department of Restorative DentistryRibeirão Preto SP ,Brazil

关键词: bond strength;    enamel;    dentin;    adhesive systems;   

DOI  :  10.1590/S0103-64402007000200007

来源: SciELO

【 摘 要 】

The aim of this study was to assess the tensile bond strength of four adhesive systems to enamel and dentin: Clearfil Liner Bond 2V - C, Prime&Bond NT/NRC - PB, Single Bond - SB and All Bond 2 -AB. For such purpose, 40 sound human molars were selected. Crowns were bisected in a mesiodistal direction and each half was ground until flat enamel (E) or dentin (D) surfaces were obtained. A total of 80 specimens were randomly assigned to 4 groups (n=20, 10 in enamel and 10 in dentin). After surface treatment, a composite resin (Z250; 3M) cone was prepared using a split Teflon® matrix. Bond strength was tested in an universal testing machine (0.5 mm/min). Bond strength means in MPa were: C - E: 18.66 (±2.67) and D: 21.62 (±5.29); PB - E: 18.13 (±2.96) and D: 3.19 (±1.40); SB - E: 20.06 (±6.11) and D: 16.95 (±2.57); AB - E: 18.20 (±3.94) and D: 15.94 (±4.72). Statistical analysis of data by two-way ANOVA showed that C presented the best results followed by SB. In conclusion, among the tested materials, Clearfil Liner Bond 2V self-etching primer adhesive syetem had the best performance. The substrate type influenced bond strength, being higher to enamel.

【 授权许可】

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