Walther, CarolinCarolinWaltherKreibohm, MananaMananaKreibohmParis, SebastianSebastianParisMeyer-Lückel, HendrikHendrikMeyer-LückelTschoppe, PeterPeterTschoppeWierichs, Richard JohannesRichard JohannesWierichs2024-10-072024-10-072019-05https://boris-portal.unibe.ch/handle/20.500.12422/61808OBJECTIVE 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 (ΔZ). 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-gel), 12.500 ppm F [pH = 7.34] (NaF-gel), 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 (ΔΔZ/ΔΔZ) were calculated between values before and after pH cycling. RESULTS Mean (95%CI) ΔZ was 3851 (3762;3939) vol% × μm. Except for NaF-gel and NaF-TP, specimens of all other groups further demineralized. Only NaF-gel 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 ΔΔZ and for ΔΔZ (p < 0.05, Bonferroni post hoc test). However, only NaF-gel 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-gel and 5000 ppm F toothpaste.enDentin Fluorides Hyposalivation Non-cavitated caries lesions Remineralization Saliva pH cycling600 - Technology::610 - Medicine & healtharticle10.7892/boris.1228833030633510.1007/s00784-018-2687-4