Effect of Various Fluorides on Enamel Structure and Chemistry

Arends, Johannes; Nelson, Douglas C.; Dijkman, Ag; Jongebloed, W.L.

doi:10.1159/000408745

Cited by 66 publications

(53 citation statements)

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“…Indeed, the concentration of fluoride found in saliva was very low (Fig. 3) to explain the increase of CaF 2 -like fluoride formed on enamel overtime (17). Therefore, fluoride release to saliva from fluoride varnishes may not be considered the best predictor of their anticaries potential because it is short-lived and the anticaries effect of these products is maintained for longer periods, giving support to their use 2 to 4 times/year (1).…”

Section: Fluoride Varnish Reaction Is Time-dependentmentioning

confidence: 99%

Insoluble NaF in Duraphat® May Prolong Fluoride Reactivity of Varnish Retained on Dental Surfaces

et al. 2014

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There is no consensus about the clinical recommendation of the time that Duraphat ® varnish should be maintained on enamel surfaces without suffering mechanical disturbance by the patient. Considering the importance of calcium fluoride (CaF 2 )-like reservoirs on the anticaries effect of professional fluoride application, an in vitro study was designed to test the reactivity of Duraphat ® varnish with enamel forming these reservoirs as a function of time. Since most fluoride in Duraphat ® varnish is insoluble to react and form products on enamel, the relative contribution of the varnish soluble and insoluble fluoride fractions to the reactivity was also evaluated. For this, whole-varnish, containing soluble and insoluble fluoride (total fluoride concentration of 23699±384 μg F/g), or centrifuged varnish, containing only soluble fluoride (fluoride concentration of 258±97 μg F/g), were applied in a standardized manner on enamel slabs (n=8/varnish group/time), which were immersed in continuously renewed artificial saliva for up to 36 h. CaF 2 -like reservoirs formed on enamel by varnish application were extracted using 1 M KOH and fluoride concentration was measured with ion specific electrode. The results were expressed as µg F/cm² of enamel area. Whole varnish formed significantly higher fluoride concentration on enamel than centrifuged varnish, reaching maximum concentration at 24 h (22.0±4.5 µg F/cm²). Centrifuged varnish reached maximum concentration at 6 h (3.20±0.81 µg F/ cm²). In conclusion, a longer varnish retention time than the usually recommended could improve the anticaries effect of Duraphat ® varnish, allowing that NaF particles, initially insoluble in the varnish matrix, prolong the reactivity with enamel.

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Section: Fluoride Varnish Reaction Is Time-dependentmentioning

confidence: 99%

Insoluble NaF in Duraphat® May Prolong Fluoride Reactivity of Varnish Retained on Dental Surfaces

et al. 2014

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“…It has been suggested that the particles like calcium fluo ride may form a diffusion barrier to acids [ten Cate and Duijsters, 1982] and/or that fluoride ions are re leased from this material to the liquid phase. The in creased fluoride in the liquid may adsorb onto the enamel mineral and thereby inhibit the rate of disso lution [Arends et al, 1984].…”

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confidence: 99%

Action of Fluoride on Initiation of Early Root Surface Caries in vivo (Short Communication)

1990

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“…(3) the release of F" ions when CaFi is dissolved, producing an antimicrobial ef fect [Horowitz, 1973;De Paola et al, 1980;Fejerskovet al, 1981;Dijkman et al, 1983]; (4) fluoride released from CaFi may act as a source for remineralization [Fejerskov et al, 1981;Chandler el al., 1982;Dijkman et al, 1983;Arends et al, 1984]. Another factor may be the ability of plaque to form on and accumulate on an enamel surface after a topical fluoride application [Bruun et al, 1980], The purpose of this pilot investigation was to study in vivo plaque formation on fluoridated CaF2-containing enamel sur faces using scanning electron microscopy (SEM).…”

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confidence: 99%

In vivo Plaque Formation on Enamel Surfaces Treated with Topical Fluoride Agents

Dijkman

Nelson

Jongebloed³

et al. 1985

Caries Res

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Three patients with a partial natural dentition in one jaw and a full denture in the other participated in this study. Enamel treated with APF gel, Duraphat or Fluor Protector and untreated controls were positioned in a full denture for periods up to 3 months. Plaque accumulation on the enamel blocks was evaluated by scanning electron microscopy. The results show that in all 3 patients studied the formation of CaF₂ inhibited dental plaque accumulation.

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Effect of Various Fluorides on Enamel Structure and Chemistry

Cited by 66 publications

References 0 publications

Insoluble NaF in Duraphat® May Prolong Fluoride Reactivity of Varnish Retained on Dental Surfaces

Insoluble NaF in Duraphat® May Prolong Fluoride Reactivity of Varnish Retained on Dental Surfaces

Action of Fluoride on Initiation of Early Root Surface Caries in vivo (Short Communication)

In vivo Plaque Formation on Enamel Surfaces Treated with Topical Fluoride Agents

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