Scanning electron microscopic observation of morphological modifications produced by Fluorostom on enamel surface.
In this in vitro study, examination of the morphological changes of enamel surface after topical application of a sodium fluoride solution was performed. Validation of the Fluorostom effectiveness became possible, after 10 years of using for the caries prevention national program.


METHODS
Sound human enamel sections, ware treated with a 0.05% sodium fluoride solution. Demineralization areas were created with 37% phosphoric acid etching gel for 60 seconds. The demineralization areas were immersed in 100 mL of sodium fluoride solution, twice daily for 30 days. Surface examination was performed at scanning electron microscope and energy dispersion spectrometry.


RESULTS
Morphological appearance of fluoride deposits on the enamel surface revealed the presence of globular precipitates. EDX qualitative analysis revealed the presence of fluoride signals.


CONCLUSIONS
Globular structures of amorphous CaF2 precipitates, which act as a fluoride reservoir, were observed on the enamel surface after action of Fluorostom, and it can be recommended to prevent and control tooth decay.
Faculty of Dental Medicine, Ovidius University, Constanta, Romania. dr.cristina_nicolae@yahoo.com
Cristina
C
Nicolae
Mihaela
M
Hîncu
C
C
Amariei
D003743:Dental Enamel / Q000187:drug effects* / Q000648:ultrastructure*; D005460:Fluorides, Topical / Q000494:pharmacology; D006801:Humans; D008855:Microscopy, Electron, Scanning; D012969:Sodium Fluoride / Q000494:pharmacology*; D012996:Solutions; D013052:Spectrometry, X-Ray Emission; D013499:Surface Properties / Q000187:drug effects; D017001:Tooth Demineralization / Q000473:pathology
D005460:Fluorides, Topical; D012996:Solutions; D012969:Sodium Fluoride