Document Detail


Effect of different surface penetrating sealants on the roughness of a nanofiller composite resin.
MedLine Citation:
PMID:  23338262     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
This study evaluated the effectiveness of different sealants applied to a nanofiller composite resin. Forty specimens of Filtek Z-350 were obtained after inserting the material in a 6x3 mm stainless steel mold followed by light activation for 20 s. The groups were divided (n=10) according to the surface treatment applied: Control group (no surface treatment), Fortify, Fortify Plus and Biscover LV. The specimens were subjected to simulated toothbrushing using a 200 g load and 250 strokes/min to simulate 1 week, 1, 3 and 6 months and 1 and 3 years in the mouth, considering 10,000 cycles equivalent to 1 year of toothbrushing. Oral-B soft-bristle-tip toothbrush heads and Colgate Total dentifrice at a 1:2 water-dilution were used. After each simulated time, surface roughness was assessed in random triplicate readings. The data were submitted to two-way ANOVA and Tukey's test at a 95% confidence level. The specimens were observed under scanning electron microscopy (SEM) after each toothbrushing cycle. The control group was not significantly different (p>0.05) from the other groups, except for Fortify Plus (p<0.05), which was rougher. No significant differences (p>0.05) were observed at the 1-month assessment between the experimental and control groups. Fortify and Fortify Plus presented a rougher surface over time, differing from the baseline (p<0.05). Biscover LV did not differ (p>0.05) from the baseline at any time. None of the experimental groups showed a significantly better performance (p>0.05) than the control group at any time. SEM confirmed the differences found during the roughness testing. Surface penetrating sealants did not improve the roughness of nanofiller composite resin.
Authors:
Murilo Baena Lopes; Paulo Cesar Saquy; Sandra Kiss Moura; Linda Wang; Fabiana Mezzaroba Ortenzi Graciano; Lourenço Correr Sobrinho; Alcides Gonini Júnior
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brazilian dental journal     Volume:  23     ISSN:  1806-4760     ISO Abbreviation:  Braz Dent J     Publication Date:  2012  
Date Detail:
Created Date:  2013-01-22     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9214652     Medline TA:  Braz Dent J     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  692-7     Citation Subset:  D    
Affiliation:
Department of Dentistry, Dental School, University of North Parana, Londrina, PR, Brazil.
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From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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