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Erschienen in: Clinical Oral Investigations 5/2019

11.10.2018 | Original Article

Effect of NaF, AmF, KF gels and NaF toothpaste combined with a saliva substitute on dentin lesions in vitro

verfasst von: Carolin Walther, Manana Kreibohm, Sebastian Paris, Hendrik Meyer-Lueckel, Peter Tschoppe, Richard Johannes Wierichs

Erschienen in: Clinical Oral Investigations | Ausgabe 5/2019

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Abstract

Objective

The aim of the present in vitro study was to evaluate the remineralizing effects of NaF, AmF, KF gels and NaF toothpaste in combination with a potentially demineralizing saliva substitute (Glandosane; pH = 5.1) being widely used in Germany.

Methods

In each of 120 dentin specimens, three artificial lesions were created. One lesion was covered for analysis of pre-demineralization (ΔZB). Treatments during pH cycling (3 × 1 h demineralization/day [pH = 5.0] and 3 × 3 h Glandosane/day; 12 h 100%humidity) were as follows: no treatment (NT), application (5 min,2×/day) of 12.500 ppm F [pH = 6.04] (NaF-gel1), 12.500 ppm F [pH = 7.34] (NaF-gel2), 12.500 ppm F [pH = 5.82] (AmF-gel), 1450 ppm F [pH = 7.35] (KF-gel), and 5000 ppm F [pH = 8.14]; (NaF-TP) for 7 days (E1). Subsequently, from each specimen, one lesion was covered, while the remaining lesion was cycled for another 7 days (E2). Differences in integrated mineral loss (ΔΔZE1/ΔΔZE2) were calculated between values before and after pH cycling.

Results

Mean (95%CI) ΔZB was 3851 (3762;3939) vol% × μm. Except for NaF-gel2 and NaF-TP, specimens of all other groups further demineralized. Only NaF-gel2 induced a significant gain in mineral content (p ≤ 0.004; paired t test). Significant differences in the change of mineral loss were found between NT and all fluoride groups for both ΔΔZE1 and for ΔΔZE2 (p < 0.05, Bonferroni post hoc test). However, only NaF-gel2 and NaF-TP induced remineralization.

Conclusion

Under the in vitro conditions chosen, all fluoride agents could significantly hamper the adverse effects of a demineralizing saliva substitute.

Clinical significance

In combination with a demineralizing saliva substitute, slight mineral gain was only observed for neutral NaF-gel2 and 5000 ppm F toothpaste.
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Metadaten
Titel
Effect of NaF, AmF, KF gels and NaF toothpaste combined with a saliva substitute on dentin lesions in vitro
verfasst von
Carolin Walther
Manana Kreibohm
Sebastian Paris
Hendrik Meyer-Lueckel
Peter Tschoppe
Richard Johannes Wierichs
Publikationsdatum
11.10.2018
Verlag
Springer Berlin Heidelberg
Erschienen in
Clinical Oral Investigations / Ausgabe 5/2019
Print ISSN: 1432-6981
Elektronische ISSN: 1436-3771
DOI
https://doi.org/10.1007/s00784-018-2687-4

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