Document Detail

Impact of adhesive and photoactivation method on sealant integrity and polymer network formation.
MedLine Citation:
PMID:  22641445     Owner:  NLM     Status:  In-Data-Review    
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.
Boniek Castillo Dutra Borges; Fabrício Lopes da Rocha Pereira; Roberta Caroline Bruschi Alonso; Rodivan Braz; Marcos Antônio Japiassú Resende Montes; Isauremi Vieira de Assunção Pinheiro; Alex José Souza Dos Santos
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brazilian oral research     Volume:  26     ISSN:  1807-3107     ISO Abbreviation:  Braz Oral Res     Publication Date:  2012 Jun 
Date Detail:
Created Date:  2012-05-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101307187     Medline TA:  Braz Oral Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  249-55     Citation Subset:  D; IM    
Department of Dentistry, School of Dentistry, Potiguar University, Laureate International Universities, Natal, RN, Brazil.
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