Open AccessReparo em resina composta usando adesivo universal melhora a estabilidade da união
Author(s) -
Heitor Ceolin Araujo,
Andressa Restani,
Eliane Cristina Gava Pizi,
Anderson Catelan,
Rosana Leal do Prado,
Graziela Ávila Prãdo Galhano
Publication year - 2021
Publication title -
research, society and development
Language(s) - English
Resource type - Journals
ISSN - 2525-3409
DOI - 10.33448/rsd-v10i8.17518
Subject(s) - silane , adhesive , materials science , bond strength , composite number , composite material , layer (electronics)
Repair in resin-based composite is a procedure that has shown good results, when properly indicated. In cases of fracture or stainning, the total removal of the restoration can cause unnecessary wear on the dental element. This study evaluated the aging effect on the bond strength of a universal adhesive containing silane, and/or application of silane separately for composite repairs. Resin composite blocks were thermocycled and divided according to adhesion protocol (n=10): silane(Sil), conventional adhesive(CA), universal adhesive(UA), Sil+CA(SilCA), and Sil+UA(SilUA). Layers of resin composite were added and blocks were sectioned and divided into 2 subgroups: 24h and 4 months of water storage. Microtensile bond strength test was performed and data were statistically analyzed (a = 0.05). After 4months of aging SilCA and SilUA showed a significant bond strength reduction, while for UA the bonding remained stable.