In Vitro Surface Investigation of Calcium Fluoride-like Precipitation on Human Enamel after Topical Treatment with the Organic Fluoride Nicomethanol Hydrofluoride.

Kiesow, Andreas; Teuscher, Nico; Morawietz, Maria; Eick, Sigrun (2021). In Vitro Surface Investigation of Calcium Fluoride-like Precipitation on Human Enamel after Topical Treatment with the Organic Fluoride Nicomethanol Hydrofluoride. Oral health & preventive dentistry, 19(1), pp. 59-65. Quintessence 10.3290/j.ohpd.b898957

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PURPOSE

The topical fluoride treatment of teeth can lead to a formation of CaF2-like material, which is considered to play a significant role in caries prevention. Different types of fluoride sources are applied. The aim of this study was to analyse the in vitro fluoridation effect of the lesser known organic fluoride compound nicomethanol hydrofluoride (NH) regarding fluoride accumulation and morphological changes on dental enamel surfaces.
Materials and Methods: The fluoridation effect was investigated by scanning electron microscopy (SEM) and energy dispersive x-ray analysis (EDX) after treatment with fluoride solutions at a concentration of 1350 ppm F - and a pH value of 5.5. NH was tested against inorganic sodium fluoride (NaF) as reference. Fluoridation was done on pellicle-free and pellicle-covered enamel.
Results: Formation of globular CaF2-like material was observed for both fluoride types. However, NH led to considerably higher calcium fluoride accumulation on the enamel surface as shown by both EDX and SEM. The globule diameters varied between 0.2 and 0.8 µm. Cross-sectional analysis revealed that the globular precipitates lay directly on the enamel surface; only the very surface-near volume was affected. No statistically significant difference of the fluoridation effect was measured with vs without saliva pre-treatment.
Conclusion: The experiments showed a 6 times greater F - surface uptake on dental enamel with NH compared to sodium fluoride, thus suggesting an important role of NH during remineralization phases, fostering equilibrium between de- and remineralization.

Item Type:

Journal Article (Original Article)

Division/Institute:

04 Faculty of Medicine > School of Dental Medicine > Department of Periodontology
04 Faculty of Medicine > School of Dental Medicine > Periodontics Research

UniBE Contributor:

Eick, Sigrun

Subjects:

600 Technology > 610 Medicine & health

ISSN:

1757-9996

Publisher:

Quintessence

Language:

English

Submitter:

Doris Burri

Date Deposited:

28 Jan 2022 12:33

Last Modified:

28 Jan 2022 12:33

Publisher DOI:

10.3290/j.ohpd.b898957

PubMed ID:

33491379

Uncontrolled Keywords:

amine fluorides calcium fluoride precipitation enamel energy dispersive x-ray analysis scanning electron microscopy

BORIS DOI:

10.48350/163924

URI:

https://boris.unibe.ch/id/eprint/163924

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