| Autor: |
Carvalho GIROTTO, Aline, ABUNA, Gabriel, SANCHEZ-PUETATE, Cristian, Andressa PICCIONI, Mayra, Soares PORTO, Thiago, Carlos KUGA, Milton |
| Předmět: |
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| Zdroj: |
Dental Materials Journal; 2021, Vol. 40 Issue 6, p1410-1417, 8p |
| Abstrakt: |
Adhesive strategies were evaluated on the bond strength of bi-functional monomers bonded to endodontically-treated-dentin (ETD). Superficial dentin was removed on human molars. Teeth were immersed in 5 mL 2.5% NaOCl, followed by immersion in 5 mL 17% EDTA. Dentin surface impregnated with epoxy resin-based sealer was then divided four groups (n=10): Scotchbond Multi-Purpose (SBMP); Single Bond Universal (SBU); Optibond All-in-One (OPB); and Tetric-N-Bond Universal (TBU). After 24-h or 1-year-of-storage specimens were submitted to microtensile bond strength (µTBS) and failure classification. A confocal laser scanning microscope (CLSM) evaluated the hybrid layer formation. Two-way ANOVA and Tukey-HSD test were performed (a=5%). The µTBS did not present statistical differences among adhesive strategies after 24-h. Significant differences were found after 1-year-of-storage. CLSM analysis showed water infiltration and consequently degradation of the hybrid layer after 1-year-of-storage. The use of SBU universal adhesive on the self-etching mode on ETD produced more stable bond over the 1-year-of-storage. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Supplemental Index |
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