| Autor: |
Amend, Stefanie, Frankenberger, Roland, Oschmann, Tobias, Lücker, Susanne, Winter, Julia, Krämer, Norbert |
| Předmět: |
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| Zdroj: |
International Journal of Paediatric Dentistry; Sep2022, Vol. 32 Issue 5, p649-659, 11p |
| Abstrakt: |
Background: The immediate microtensile bond strength (µTBS) of self‐etch (SE) adhesives to primary dentine is promising, but evidence about the durability is scarce. Aim: To assess the long‐term µTBS of SE adhesives to primary dentine and to examine the effect of 7‐s etching on µTBS of a 3‐step etch‐and‐rinse (ER) adhesive. Design: The enamel of 115 caries‐free human primary teeth was ground flat, and bonding was performed according to group assignment: G‐aenial™ Bond/GC [GB], Clearfil™ SE Bond/Kuraray [CS], OptiBond™ XTR/Kerr [OX], Scotchbond™ Universal/3M™ [SU], Prime&Bond® NT™/Dentsply [PB], and OptiBond™ FL/Kerr [OF]. After storage (24 h, 6 mos., 12 mos.), 1,762 beams were cut for µTBS testing. Fracture analysis was performed using light/fluorescence microscopy. Resin‐dentine interfaces were exemplarily analyzed using SEM. Results: After 24 h, OX and SU showed significantly higher estimated mean µTBS than GB, which exhibited the lowest µTBS at all stages (p <.05). μTBS within each adhesive group showed slight variations over time (p >.05). OF_SE produced acceptable µTBS. Etching increased the mean immediate µTBS for OF (p >.05) and the percentage of cohesive fractures. Conclusions: SE adhesives achieved durable μTBS to primary dentine. 7‐s etching may improve the immediate µTBS of a 3‐step ER adhesive. [ABSTRACT FROM AUTHOR] |
| Databáze: |
Complementary Index |
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