Effect of primer before resin cement on bracket base and the influence of storage time on shear bond strength
Carregando...
Data
Data de publicação
Autores IPEN
MOREIRA, FERNANDO C.
Orientador
Título da Revista
ISSN da Revista
Título do Volume
É parte de
É parte de
É parte de
Journal of Interdisciplinary Dentistry
Exportar
Resumo
Background: The elapsed time after bracket bonding and sandblasting the base could influence the shear bond strength (SBS) to enamel. Aim: This study evaluated the effect of primer application on the bracket base before application of resin and its interaction with storage time and sandblasting factors on SBS. Materials and Methods: Brackets were bonded on the enamel surface of 160 bovine incisors divided into eight groups (n = 20) with mesh bases, with and without sandblasting, with different storage times (immediately and 24 h), and with two different techniques (with and without primer on the base before resin). Results: SBS mean in conventional and primer groups ranged from 23 ± 7.76 MPa to 48 ± 11.34 MPa, respectively. After 24 h period, SBS increased when the primer was applied before resin on the bracket bases (P < 0.001). The effect of each isolated factor (storage time and primer application) was statistically significant (P < 0.001). Primer application versus time factors was statistically significant (P < 0.001). Sandblasted bases were not influential on SBS separately or by any of the interaction factors (P = 0.628). Adhesive interface failures were significant when the adhesive remnant index was evaluated regarding storage time without primer (P = 0.022); however, primer application did not show significance when the time was evaluated (P = 0.686). Conclusion: Primer increases the SBS after a 24 h period. Most of the failures occurred at the enamel/adhesive interface. Sandblasting treatment of bracket bases did not influence the SBS.
Como referenciar
MOREIRA, FERNANDO C.; JACOB, HELDER B. Effect of primer before resin cement on bracket base and the influence of storage time on shear bond strength. Journal of Interdisciplinary Dentistry, v. 14, n. 1, p. 32-40, 2024. DOI: 10.4103/jid.jid_52_23. Disponível em: https://repositorio.ipen.br/handle/123456789/48113. Acesso em: 20 Mar 2026.
Esta referência é gerada automaticamente de acordo com as normas do estilo IPEN/SP (ABNT NBR 6023) e recomenda-se uma verificação final e ajustes caso necessário.