Efficacy of fluoride varnishes in preventing enamel demineralization

Zabokova Bilbilova, Efka and Igić, Ana and Georgiev, Zlatko and Kovacevska, Ivona and Lazarova, Maja (2022) Efficacy of fluoride varnishes in preventing enamel demineralization. Acta Medica Medianae, 61 (1). ISSN 1821-2794

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Abstract

Demineralization is a process in which the inorganic content of the enamel structure is
lost leading to occurrence of white spot lesions. The purpose of this study was to examine
fluoride varnish effect on enamel. The study involved 20 premolars extracted for orthodontic
reasons. Before the extractions, brackets were bonded with one type of adhesive according to
manufacturers ‘bonding instructions. After bracket bonding, ten left premolars (the test group)
were kept dried by careful tooth isolation and the enamel received a topical application of
fluoride varnish (Duraphat®, Germany). Ten right premolars (the control group) did not receive
any varnish application and brackets were fixed using identical procedures. After two months,
the premolars were extracted and prepared for SEM analysis. Samples treated with fluoride
varnish showed a nearly smooth surface, with complete obtrusion of interrod spaces in some
fields. The rods appeared as they were fused together with some globules deposited on the
surface, relatively no evidence of porosities or irregularities. Within control group demineralization
started on enamel surface, but still with adequate and genuine prisms together within
interprismatic space. Micro-morphological surface observation of the enamel surfaces showed
demineralized surface as rough and uneven tooth enamel (shrinking of prisms, due to the
widening of the prismatic spaces). Fluoride varnish application on enamel surface prevents
demineralization processes. Fluoride application could act as a 'barrier' against the demineralization
processes on enamel.

Item Type:	Article
Subjects:	Medical and Health Sciences > Other medical sciences
Divisions:	Faculty of Medical Science
Depositing User:	Natasa Longurova
Date Deposited:	02 Feb 2023 07:37
Last Modified:	02 Feb 2023 07:37
URI:	https://eprints.ugd.edu.mk/id/eprint/31182

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