Effect of 10% fluoride on the remineralization of dentin in situ
ABSTRACT Objective The purpose of this randomized, cross-over, in situ study was to determine the remineralization of demineralized dentin specimens after the application of a 10% fluoride (F-) or a 1% chlorhexidine–1% thymol (CHX–thymol) varnish. Material and Methods Twelve individuals without...
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doaj-ff4a1fdd0a034437bd51537026ac5ef62020-11-24T22:38:20ZengUniversity of São PauloJournal of Applied Oral Science1678-77652015-12-0123656257010.1590/1678-775720150239S1678-77572015000600562Effect of 10% fluoride on the remineralization of dentin in situMozhgan BIZHANGSabine KALETA-KRAGTPreeti SINGH-HÜSGENMarkus Jörg ALTENBURGERStefan ZIMMERABSTRACT Objective The purpose of this randomized, cross-over, in situ study was to determine the remineralization of demineralized dentin specimens after the application of a 10% fluoride (F-) or a 1% chlorhexidine–1% thymol (CHX–thymol) varnish. Material and Methods Twelve individuals without current caries activity wore removable appliances in the lower jaw for a period of four weeks. Each appliance contained four human demineralized dentin specimens fixed on the buccal aspects. The dentin specimens were obtained from the cervical regions of extracted human third molars. After demineralization, half the surface of each specimen was covered with a nail varnish to serve as the reference surface. The dentin specimens were randomly assigned to one of the three groups: F-, CHX–thymol, and control (no treatment). Before the first treatment period and between the others, there were washout periods of one week. After each treatment phase, the changes in mineral content (vol% µm) and the lesion depths (µm) of the dentin slabs were determined by transverse microradiography (TMR). Data analysis was accomplished by the Kruskal-Wallis test and the Mann-Whitney U test (p<0.05). Results The medians (25th/75th percentile) of integrated mineral loss were 312.70 (203.0-628.7) for chlorhexidine varnish, 309.5 (109.8-665.8) for fluoride varnish, and -346.9 (-128.7 - -596.0) for the control group. The medians (25th/75th percentile) of lesion depth were 13.6 (5.7-34.5) for chlorhexidine varnish, 16.5 (5.6-38.1) for fluoride varnish, and -14.2 (-4.5- -32.9) for the control group. Use of the 10% F- or 1% CHX–1% thymol varnishes resulted in significantly decreased mineral loss and lesion depth in dentin when compared with the control group. There were no statistically significant differences among the test groups. Conclusions Within the limitations of this study, the results suggest that the effect of the treatment of demineralized dentin with 10% F- or 1% CHX–1% thymol is better than without any treatment.http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572015000600562&lng=en&tlng=enMicroradiographyTooth remineralizationDemineralizationIn situDentinFluoridesChlorhexidine |
collection |
DOAJ |
language |
English |
format |
Article |
sources |
DOAJ |
author |
Mozhgan BIZHANG Sabine KALETA-KRAGT Preeti SINGH-HÜSGEN Markus Jörg ALTENBURGER Stefan ZIMMER |
spellingShingle |
Mozhgan BIZHANG Sabine KALETA-KRAGT Preeti SINGH-HÜSGEN Markus Jörg ALTENBURGER Stefan ZIMMER Effect of 10% fluoride on the remineralization of dentin in situ Journal of Applied Oral Science Microradiography Tooth remineralization Demineralization In situ Dentin Fluorides Chlorhexidine |
author_facet |
Mozhgan BIZHANG Sabine KALETA-KRAGT Preeti SINGH-HÜSGEN Markus Jörg ALTENBURGER Stefan ZIMMER |
author_sort |
Mozhgan BIZHANG |
title |
Effect of 10% fluoride on the remineralization of dentin in situ |
title_short |
Effect of 10% fluoride on the remineralization of dentin in situ |
title_full |
Effect of 10% fluoride on the remineralization of dentin in situ |
title_fullStr |
Effect of 10% fluoride on the remineralization of dentin in situ |
title_full_unstemmed |
Effect of 10% fluoride on the remineralization of dentin in situ |
title_sort |
effect of 10% fluoride on the remineralization of dentin in situ |
publisher |
University of São Paulo |
series |
Journal of Applied Oral Science |
issn |
1678-7765 |
publishDate |
2015-12-01 |
description |
ABSTRACT Objective The purpose of this randomized, cross-over, in situ study was to determine the remineralization of demineralized dentin specimens after the application of a 10% fluoride (F-) or a 1% chlorhexidine–1% thymol (CHX–thymol) varnish. Material and Methods Twelve individuals without current caries activity wore removable appliances in the lower jaw for a period of four weeks. Each appliance contained four human demineralized dentin specimens fixed on the buccal aspects. The dentin specimens were obtained from the cervical regions of extracted human third molars. After demineralization, half the surface of each specimen was covered with a nail varnish to serve as the reference surface. The dentin specimens were randomly assigned to one of the three groups: F-, CHX–thymol, and control (no treatment). Before the first treatment period and between the others, there were washout periods of one week. After each treatment phase, the changes in mineral content (vol% µm) and the lesion depths (µm) of the dentin slabs were determined by transverse microradiography (TMR). Data analysis was accomplished by the Kruskal-Wallis test and the Mann-Whitney U test (p<0.05). Results The medians (25th/75th percentile) of integrated mineral loss were 312.70 (203.0-628.7) for chlorhexidine varnish, 309.5 (109.8-665.8) for fluoride varnish, and -346.9 (-128.7 - -596.0) for the control group. The medians (25th/75th percentile) of lesion depth were 13.6 (5.7-34.5) for chlorhexidine varnish, 16.5 (5.6-38.1) for fluoride varnish, and -14.2 (-4.5- -32.9) for the control group. Use of the 10% F- or 1% CHX–1% thymol varnishes resulted in significantly decreased mineral loss and lesion depth in dentin when compared with the control group. There were no statistically significant differences among the test groups. Conclusions Within the limitations of this study, the results suggest that the effect of the treatment of demineralized dentin with 10% F- or 1% CHX–1% thymol is better than without any treatment. |
topic |
Microradiography Tooth remineralization Demineralization In situ Dentin Fluorides Chlorhexidine |
url |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1678-77572015000600562&lng=en&tlng=en |
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