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|Title:||Impact of adhesive and photoactivation method on sealant integrity and polymer network formation|
|Authors:||Borges, Boniek Castillo Dutra|
Pereira, Fabrício Lopes da Rocha
Alonso, Roberta Caroline Bruschi
Montes, Marcos Antônio Japiassú Resende
Pinheiro, I. V. A.
Santos, Alex Jose Souza dos
|Keywords:||Hardness tests;Dental marginal adaptation;Polymerization|
|Citation:||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.|
|Portuguese 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.|
|Appears in Collections:||CCS - DOD - Artigos publicados em periódicos|
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|Impact of adhesive and photoactivation method on sealant integrity and polymer network formation_2012.pdf||http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000300011||307.33 kB||Adobe PDF|
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