Use este identificador para citar ou linkar para este item: https://repositorio.ufrn.br/jspui/handle/123456789/22991
Título: Impact of adhesive and photoactivation method on sealant integrity and polymer network formation
Autor(es): Borges, Boniek Castillo Dutra
Pereira, Fabrício Lopes da Rocha
Alonso, Roberta Caroline Bruschi
Braz, Rodivan
Montes, Marcos Antônio Japiassú Resende
Pinheiro, I. V. A.
Santos, Alex Jose Souza dos
Palavras-chave: Hardness tests;Dental marginal adaptation;Polymerization
Data do documento: 2012
Citação: BORGES, B. C. D. et al. Impact of adhesive and photoactivation method on sealant integrity and polymer network formation. Brazilian Oral Research, v. 26, n. 3, p. 249-255, 2012.
metadata.dc.description.resumo: We evaluated the influence of photoactivation method and hydrophobic resin (HR) application on the marginal and internal adaptation, hardness (KHN), and crosslink density (CLD) of a resin-based fissure sealant. Model fissures were created in bovine enamel fragments (n = 10) and sealed using one of the following protocols: no adhesive system + photoactivation of the sealant using continuous light (CL), no adhesive system + photoactivation of the sealant using the soft-start method (SS), HR + CL, or HR + SS. Marginal and internal gaps and KHN were assessed after storage in water for 24 h. The CLD was indirectly assessed by repeating the KHN measurement after 24 h of immersion in 100% ethanol. There was no difference among the samples with regard to marginal or internal adaptation. The KHN and CLD were similar for samples cured using either photoactivation method. Use of a hydrophobic resin prior to placement of fissure sealants and curing the sealant using the soft-start method may not provide any positive influence on integrity or crosslink density.
URI: http://hdl.handle.net/123456789/22991
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