Dentin bond strength evaluation between a conventional and universal adhesive using etch-and-rinse strategy

• Main Authors: Genine Moreira de Freitas Guimarães (Author), Karin Cristina da Silva Modena (Author), Carolina Yoshi Campos Sugio (Author), Tamires de Luccas Bueno (Author), Maria Angélica Silvério Agulhari (Author), Maria Teresa Atta (Author)
• Format: Book
• Published: Universidade Estadual de Campinas, 2021-02-01T00:00:00Z.
• Subjects: article
• Online Access: Connect to this object online.

Summary

Aim: The aim of this study was to compare the microtensile bond strength (μTBS) and the characteristics of the adhesive interface of Scotchbond Universal - SU - etch-and-rise mode (3M ESPE) and Adper Scotchbond Multi-Purpose - MP (3M ESPE) to dentin over time. Methods: Class I cavity preparations were performed in 60 human molars that were randomly divided according to the dentin bonding system (DBS) used (n=30): (1) Acid conditioning + SU and (2) Acid conditioning + MP. For bonding strength (BS) analysis, 30 teeth (n = 15) were sectioned into sticks and submitted to the microtensile test in a universal testing machine after 24 hours and 12 months. The adhesive interface of the others 30 teeth was analyzed in a confocal microscope after 24 hours and 12 months. The data of μTBS were analyzed by two-way repeated measures ANOVA and Tukey's HSD (α = 0.05). Results: SU presented the lowest DBS compared to MP (p=0.000). Time did not influenced DBS for both adhesive systems (p=0.177). Confocal microscopy analysis showed no cracks between both adhesive systems tested. Conclusion: The results indicate that MP - μTBS showed a better performance compared to SU in total-etch mode.

Item Description

10.20396/bjos.v20i00.8659342
1677-3225