%0 Journal Article
%T Impact of adhesive and photoactivation method on sealant integrity and polymer network formation
%A Borges
%A Boniek Castillo Dutra
%A Pereira
%A Fabr¨ªcio Lopes da Rocha
%A Alonso
%A Roberta Caroline Bruschi
%A Braz
%A Rodivan
%A Montes
%A Marcos Ant£¿nio Japiass¨² Resende
%A Pinheiro
%A Isauremi Vieira de Assun£¿£¿o
%A Santos
%A Alex Jos¨¦ Souza dos
%J Brazilian Oral Research
%D 2012
%I Sociedade Brasileira de Pesquisa Odontol¨®gica
%R 10.1590/S1806-83242012000300011
%X 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.
%K hardness tests
%K dental marginal adaptation
%K polymerization.
%U http://www.scielo.br/scielo.php?script=sci_abstract&pid=S1806-83242012000300011&lng=en&nrm=iso&tlng=en