Impact of adhesive and photoactivation method on sealant integrity and polymer network formation
Braz. oral res
;
26(3): 249-255, May-June 2012. ilus, tab
Artigo
em Inglês
| LILACS
| ID: lil-622941
ABSTRACT
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.
Texto completo:
DisponíveL
Índice:
LILACS (Américas)
Assunto principal:
Selantes de Fossas e Fissuras
/
Adesivos Dentinários
/
Resinas Compostas
/
Polimerização
Tipo de estudo:
Estudos de avaliação
/
Estudo prognóstico
Limite:
Animais
Idioma:
Inglês
Revista:
Braz. oral res
Assunto da revista:
Odontologia
Ano de publicação:
2012
Tipo de documento:
Artigo
País de afiliação:
Brasil
Instituição/País de afiliação:
Bandeirante University of São Paulo/BR
/
Federal University of Rio Grande do Norte/BR
/
Laureate International Universities/BR
/
University of Pernambuco/BR
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