Impact of adhesive and photoactivation method on sealant integrity and polymer network formation
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.
Main Authors: | Borges,Boniek Castillo Dutra, Pereira,Fabrício Lopes da Rocha, Alonso,Roberta Caroline Bruschi, Braz,Rodivan, Montes,Marcos Antônio Japiassú Resende, Pinheiro,Isauremi Vieira de Assunção, Santos,Alex José Souza dos |
---|---|
Format: | Digital revista |
Language: | English |
Published: |
Sociedade Brasileira de Pesquisa Odontológica - SBPqO
2012
|
Online Access: | http://old.scielo.br/scielo.php?script=sci_arttext&pid=S1806-83242012000300011 |
Tags: |
Add Tag
No Tags, Be the first to tag this record!
|
Similar Items
-
Influence of etching time and bonding strategies on the microshear bond strength of self- and light-cured pit-and-fissure sealants
by: Souza-Junior,Eduardo José, et al.
Published: (2012) -
Effect of irradiation times on the polymerization depth of contemporary fissure sealants with different opacities
by: Borges,Boniek Castillo Dutra, et al.
Published: (2011) -
Immediate and delayed photoactivation of self-adhesive resin cements and retention of glass-fiber posts
by: Faria-e-Silva,André Luis, et al.
Published: (2014) -
Adhesives, Sealants, and Coatings for Space and Harsh Environments [electronic resource] /
by: Lee, Lieng-Huang. editor., et al.
Published: (1988) -
Microleakage of a self- adhesive flowable resin as pit and fissure sealant.
by: Brasca N, Bonnin C, Ríos A, Girardi I, Girardi M, Delgado A, Chávez Lozada J, Urquía Morales M del C.
Published: (2013)