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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2012-01-01
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Series: | International Journal of Dentistry |
Online Access: | http://dx.doi.org/10.1155/2012/874359 |
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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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AT florianjwegehaupt influenceoflightcuringmodeontheerosionpreventiveeffectofthreedifferentresinbasedsurfacesealants AT tobiasttaubock influenceoflightcuringmodeontheerosionpreventiveeffectofthreedifferentresinbasedsurfacesealants AT beatricesener influenceoflightcuringmodeontheerosionpreventiveeffectofthreedifferentresinbasedsurfacesealants AT thomasattin influenceoflightcuringmodeontheerosionpreventiveeffectofthreedifferentresinbasedsurfacesealants |
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