Abstract
Objective
This study aimed to determine whether the application of a high-fluoride gel could increase the remineralization of subsurface dentin lesions stored in saliva substitutes.
Materials and methods
Demineralized bovine dentin specimens were stored in mineral water (W), Glandosane (G), or modified Saliva natura (SN). Different treatments were applied twice daily: no treatment, Elmex sensitive mouth rinse (E), ProSchmelz gel (P), Duraphat toothpaste (D), ED, PD, and EPD. Differences in mineral loss were evaluated by transversal microradiography after 2 and 5 weeks.
Results
The treatments with E, D, and ED inhibited the mineral loss induced by G and enabled some mineral gain. ProSchmelz was not able to inhibit the demineralizing effect of G. This high-fluoride gel induced an erosive mineral loss in combination with G. The use of ProSchmelz in combination or not with other fluoride products did not increase remineralization of specimens stored in SN or W (p > 0.05). ProSchmelz resulted in an erosion of the specimens stored in W and revealed a lower mineralized surface layer of specimens stored in SN.
Conclusion
Topical application of high-fluoride gel reduced the mineral loss induced by G but resulted in an erosion of specimens’ surface. In addition, ProSchmelz did not demonstrate beneficial effects in combination with SN on subsurface dentin lesion remineralization.
Clinical relevance
Within the limitations of an in vitro study, it was concluded that the application of a high-fluoride gel did not promote additional effects on remineralization of subsurface dentin lesions in combination with saliva substitutes when compared to products with lower fluoride concentration.
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Acknowledgments
The authors would like to thank Coordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES) (Brasília, DF, Brazil) and Forschungsgemeinschaft Dental e.V. (Cologne, Germany) for providing financial support and Mr. Rainer Toll (Charité - Universitätsmedizin Berlin) for his technical support during the laboratory work. Experiments have been conducted at the Department of Operative Dentistry and Periodontology (Charité - Universitätsmedizin Berlin), which is greatly acknowledged.
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The authors declare that they have no conflict of interest.
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Daniela Leal Zandim-Barcelos and Peter Tschoppe contributed equally to this paper.
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Zandim-Barcelos, D.L., Kielbassa, A.M., Sampaio, J.E.C. et al. Saliva substitutes in combination with high-fluoride gel on dentin remineralization. Clin Oral Invest 19, 289–297 (2015). https://doi.org/10.1007/s00784-014-1264-8
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DOI: https://doi.org/10.1007/s00784-014-1264-8