Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants

Objectives. To investigate if reducing the light-curing time (while maintaining similar energy density) of resin-based surface sealants influences their erosion-preventive potential and mechanical stability after thermomechanical loading. Methods. Dentine samples were treated as follows: group 1—unt...

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Main Authors: Florian J. Wegehaupt, Tobias T. Tauböck, Beatrice Sener, Thomas Attin
Format: Article
Language:English
Published: Hindawi Limited 2012-01-01
Series:International Journal of Dentistry
Online Access:http://dx.doi.org/10.1155/2012/874359
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spelling doaj-189770f8b3454e03ad87d09c5182e1312020-11-24T23:27:10ZengHindawi LimitedInternational Journal of Dentistry1687-87281687-87362012-01-01201210.1155/2012/874359874359Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface SealantsFlorian J. Wegehaupt0Tobias T. Tauböck1Beatrice Sener2Thomas Attin3Clinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Plattenstrasse 11, 8032 Zürich, SwitzerlandClinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Plattenstrasse 11, 8032 Zürich, SwitzerlandClinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Plattenstrasse 11, 8032 Zürich, SwitzerlandClinic for Preventive Dentistry, Periodontology and Cariology, University of Zurich, Plattenstrasse 11, 8032 Zürich, SwitzerlandObjectives. To investigate if reducing the light-curing time (while maintaining similar energy density) of resin-based surface sealants influences their erosion-preventive potential and mechanical stability after thermomechanical loading. Methods. Dentine samples were treated as follows: group 1—untreated, groups 2–4—Seal&Protect, groups 5–7—experimental sealer, and groups 8–10—Syntac Classic system. Groups 2, 5 and 8 were light-cured for 10 s (1000 mW/cm2), groups 3, 6 and 9 for 7 s (1400 mW/cm2), and groups 4, 7, and 10 for 3 s (3200 mW/cm2). After water storage (7 d), first measurement was performed to evaluate baseline permeability of the sealants. After a thermomechanical loading (5000 cycles, 50/5°C, 12000 brushing strokes) a second evaluation of permeability was conducted (measurement 2). Permeability was tested by storing the samples in HCl (pH 2.3; 24 h) and measuring the dentine calcium release by atomic absorption spectroscopy. Results. For the first and second measurements, no influence of light-exposure time on permeability was observed (ANOVA: P>0.05). No significant difference in the stability of the respective sealants was observed when light-cured for different durations. Conclusion. Shortening the light-curing time, while maintaining energy density constant, has no influence on permeability and stability of the investigated sealants.http://dx.doi.org/10.1155/2012/874359
collection DOAJ
language English
format Article
sources DOAJ
author Florian J. Wegehaupt
Tobias T. Tauböck
Beatrice Sener
Thomas Attin
spellingShingle Florian J. Wegehaupt
Tobias T. Tauböck
Beatrice Sener
Thomas Attin
Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants
International Journal of Dentistry
author_facet Florian J. Wegehaupt
Tobias T. Tauböck
Beatrice Sener
Thomas Attin
author_sort Florian J. Wegehaupt
title Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants
title_short Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants
title_full Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants
title_fullStr Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants
title_full_unstemmed Influence of Light-Curing Mode on the Erosion Preventive Effect of Three Different Resin-Based Surface Sealants
title_sort influence of light-curing mode on the erosion preventive effect of three different resin-based surface sealants
publisher Hindawi Limited
series International Journal of Dentistry
issn 1687-8728
1687-8736
publishDate 2012-01-01
description Objectives. To investigate if reducing the light-curing time (while maintaining similar energy density) of resin-based surface sealants influences their erosion-preventive potential and mechanical stability after thermomechanical loading. Methods. Dentine samples were treated as follows: group 1—untreated, groups 2–4—Seal&Protect, groups 5–7—experimental sealer, and groups 8–10—Syntac Classic system. Groups 2, 5 and 8 were light-cured for 10 s (1000 mW/cm2), groups 3, 6 and 9 for 7 s (1400 mW/cm2), and groups 4, 7, and 10 for 3 s (3200 mW/cm2). After water storage (7 d), first measurement was performed to evaluate baseline permeability of the sealants. After a thermomechanical loading (5000 cycles, 50/5°C, 12000 brushing strokes) a second evaluation of permeability was conducted (measurement 2). Permeability was tested by storing the samples in HCl (pH 2.3; 24 h) and measuring the dentine calcium release by atomic absorption spectroscopy. Results. For the first and second measurements, no influence of light-exposure time on permeability was observed (ANOVA: P>0.05). No significant difference in the stability of the respective sealants was observed when light-cured for different durations. Conclusion. Shortening the light-curing time, while maintaining energy density constant, has no influence on permeability and stability of the investigated sealants.
url http://dx.doi.org/10.1155/2012/874359
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