Resistência de união na cervical de cavidades classe II com resinas Bulk Fill

Autores

DOI:

https://doi.org/10.33448/rsd-v10i11.18970

Palavras-chave:

Compósitos; Resina Bulk Fill; Microtração; Tensão de polimerização.

Resumo

Objetivo: O objetivo deste estudo foi avaliar in vitro a resistência de união através do teste de microtração de resinas compostas bulk fill do tipo flow à dentina da margem cervical de cavidades classe II de molares humanos recém extraídos. Metodologia: Foram padronizadas 50 cavidades com 4 mm de profundidade e 3 mm de largura vestíbulo-lingual, na mesial e distal de 25 molares.  As cavidades (n=10) foram restauradas com as resinas: Filtek Z350XT e Filtek Flow (3M/ESPE); Filtek Bulk Fill Flow (3M/ESPE); Surefill SDR Flow (Dentsply) e X-tra Base (Voco). Após 24h em estufa (37ºC), as amostras foram seccionados em palitos da parede cervical das caixas proximais, com uma área e seção transversal de ± 1mm2 e tracionados em uma máquina de ensaio universal (Kratos/modelo IKCL3-USB), velocidade de 1mm/min. O dados obtidos em MPa foram submetidos à teste estatístico ANOVA e Tukey (p<0.005). A média da resistência de união mais elevada foi registrada no grupo SDR (64.37 MPa), seguida dos grupos X-tra Base (41.46 MPa), Filtek Flow (36.85 MPa), Filtek Bulk  Fill  Flow (26.98Mpa) e  Filtek Z350 (20.99 MPa). Conclusão: As resinas bulk fill de baixa viscosidade estudadas demonstraram resistências de união satisfatória nas paredes cervicais de cavidades classe II.

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Publicado

29/08/2021

Como Citar

MELO, M. A. S.; BRANDÃO, F. J. T. B. .; SILVA, R. B. da .; DURÃO, M. de A. . Resistência de união na cervical de cavidades classe II com resinas Bulk Fill . Research, Society and Development, [S. l.], v. 10, n. 11, p. e213101118970, 2021. DOI: 10.33448/rsd-v10i11.18970. Disponível em: https://rsdjournal.org/index.php/rsd/article/view/18970. Acesso em: 23 nov. 2024.

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Ciências da Saúde