Document Detail

Marginal microleakage of a sealant applied to permanent enamel: evaluation of 3 application protocols.
MedLine Citation:
PMID:  18402096     Owner:  NLM     Status:  MEDLINE    
PURPOSE: The purpose of this in vitro study was to investigate and compare the microleakage-occurring after the placement of a light-curing sealant-to unground permanent enamel which had been previously conditioned using 3 different application protocols. METHODS: Sixty-three molars were randomly distributed in 3 different groups according to the application protocol of the sealant: (1) conditioning of the enamel with 38% phosphoric acid (group 1); (2) conditioning with phosphoric acid and single-bottle dentin bonding agent (group 2); or (3) conditioning with a self-etching adhesive (group 3). Samples were: (1) thermocycled; (2) stained; (3) sectioned; and (4) examined for marginal microleakage. RESULTS: No dye penetration was noted for 25%, 59%, and 40% of cases for groups 1, 2, and 3, respectively. CONCLUSIONS: Placement of a bonding agent layer prior to the sealant allows significantly less microleakage than the traditional conditioning of enamel with phosphoric acid alone. The self-etching adhesive used here seems to be an attractive alternative to the acid-etch and adhesive technique for sealant application in young children, since it would simplify the procedure. Clinical trials should be performed to assess the performance of these products before definitive conclusions can be formulated.
Marie-Eve Asselin; Daniel Fortin; Yves Sitbon; Pierre H Rompré
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Publication Detail:
Type:  Comparative Study; Journal Article; Randomized Controlled Trial    
Journal Detail:
Title:  Pediatric dentistry     Volume:  30     ISSN:  0164-1263     ISO Abbreviation:  Pediatr Dent     Publication Date:    2008 Jan-Feb
Date Detail:
Created Date:  2008-04-11     Completed Date:  2008-05-30     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  7909102     Medline TA:  Pediatr Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  29-33     Citation Subset:  D; IM    
Department of Pediatric Dentistry, College of Dentistry, University of Iowa, Iowa, USA.
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MeSH Terms
Acid Etching, Dental
Benzenesulfonates / diagnostic use
Bisphenol A-Glycidyl Methacrylate / chemistry
Coloring Agents / diagnostic use
Composite Resins / chemistry
Dental Bonding / methods*
Dental Enamel / ultrastructure*
Dental Leakage / classification*
Dental Marginal Adaptation
Dentin-Bonding Agents / chemistry*
Materials Testing
Phosphoric Acids / chemistry
Pit and Fissure Sealants / chemistry*
Resin Cements / chemistry
Surface Properties
Time Factors
Reg. No./Substance:
0/Benzenesulfonates; 0/Clinpro Sealant; 0/Coloring Agents; 0/Composite Resins; 0/Dentin-Bonding Agents; 0/Phosphoric Acids; 0/Pit and Fissure Sealants; 0/Prompt L-Pop; 0/Resin Cements; 0/Single Bond Plus; 1565-94-2/Bisphenol A-Glycidyl Methacrylate; 28983-56-4/Methyl Blue; 7664-38-2/phosphoric acid

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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