Fluoride uptake from a composite restorative by enamel

Temin, Samuel C.; Csűrös, Z.; Mellberg, J.R.

doi:10.1016/0109-5641(89)90096-1

Cited by 25 publications

(7 citation statements)

References 8 publications

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“…The mechanism of fluoride release is thought to be derived from the fluoride diffusion from fine particles dispersed in a resin matrix. The diffused fluoride was easily taken up by adjacent teeth [Temin et al, 1989;Chan et al, 1990]. However, Heliomolar or Pertac-Hybrid contain different fine particles dispersed in a resin as inorganic filler.…”

Section: Discussionmentioning

confidence: 99%

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In vitro Enamel and Cementum Fluoride Uptake from Three Fluoride–Containing Composites

et al. 1998

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The incorporation of fluoride into restorations is desirable because of its cariostatic action. The purpose of this study was to determine fluoride release and fluoride uptake by enamel and cementum from three visible light–cured fluoride–containing composites. Seven circular discs of each composite were prepared and the amount of fluoride released into distilled water was determined at daily intervals for 14 days and then after 30, 60 and 90 days. The fluoride concentration in enamel and cementum was determined in three successive depths by an acid etch biopsy procedure. The composite slabs were made and ligated to the enamel and cementum surfaces and the teeth were immersed in synthetic saliva for 7 days. After removal of the composite slabs, three successive biopsies were again performed. Then the teeth were immersed in 1 M KOH for 24 h and similar biopsies done. The fluoride concentrations were adjusted to standardized depths of 10μm, and the total and bound fluoride uptake calculated. The amounts of fluoride released were significantly different among the three composites. The fluoride released decreased sharply after 1 day and then gradually reached a plateau. As for the enamel and cementum fluoride uptake, FluorEver showed the largest uptake followed by FluoroCore and then Pertac–Hybrid.

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Section: Discussionmentioning

confidence: 99%

“…Other products used a microencapsulated soluble salt [Temin et al, 1989;Chan et al, 1990] or dispersed sparingly soluble fluoride salts [Arends and Ruben, 1988] as their inorganic fillers. These fluoride-containing composites were developed to release fluoride slowly for an extended period of time.…”

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confidence: 99%

In vitro Enamel and Cementum Fluoride Uptake from Three Fluoride–Containing Composites

et al. 1998

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“…Most conventional methods for the evaluation of fluoride release measure ions eluted from discs of a material (Cooley et al, 1988;Temin and Csuros, 1988;Swift, 1989). Other evaluation methods involve measurement of fluoride uptake by tooth structure (Temin et al, 1989). Another approach would be the simulation of clinical conditions and measurement of fluoride release from composite beneath brackets bonded to etched enamel.…”

mentioning

confidence: 99%

In vitro Evaluation of a Fluoride-releasing Orthodontic Resin

1990

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Decalcification around brackets is sometimes observed following orthodontic treatment. Fluoride-releasing orthodontic adhesives have been developed and used for reduction of the frequency and severity of decalcification. This study evaluated a light-activated, fluoride-releasing resin composite adhesive, FluorEver OBA. Our findings indicate that FluorEver OBA released small concentrations of fluoride ions over time. However, the adhesive had significantly lower tensile bond strengths than a conventional composite cement. Microhardness testing indicated that the resin underneath metal orthodontic brackets was not thoroughly polymerized, which may have contributed to cohesive failures of the resin composite. Despite its lower tensile bond strength, FluorEver OBA may be indicated for cases where decalcification is expected.

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“…In one system (Fluorever®), NaF was added to a composite system. This fluoride-containing composite resin releases substantial amounts of fluoride that is subsequently incorporated in enamel [Temin and Czuros, 1988;Cooley et al, 1988;Temin et al, 1989]. Another approach is the YbF3 incorpora tion of fluoride as part of the filler system of the compos ite.…”

mentioning

confidence: 99%

Secondary Caries in situ around Fluoride-Releasing Light-Curing Composites: A Quantitative Model Investigation on Four Materials with a Fluoride Content between 0 and 26 vol%

Dijkman¹,

Arends²

1992

Caries Res

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In the literature, secondary caries around composite restorations is reported often. Fluoridated composites are therefore interesting materials because they might reduce or inhibit secondary caries. In this article an in situ model investigation is presented in which the effect of F-releasing composites on enamel demineralisation around an artificial gap of 200 μm width was quantified after 1 month. The fluoride content of the composites varied between 0 and 26 vol%. The beneficial effect of the fluoride released was larger in the gap than at the outer enamel surface. In the gap, all fluoridated composites reduced the enamel demineralisation statistically significantly with respect to the non-fluoridated control. Microradiography showed a reduction of lesion depth values of 27–45%, and a reduction of mineral loss values of 25–56%. At the outer enamel surface next to the artificial gap, a beneficial fluoridation effect was measurable only near the most fluoridated composite. The results indicate that fluoridated composites may play a role in the future prevention of secondary caries.

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Fluoride uptake from a composite restorative by enamel

Cited by 25 publications

References 8 publications

In vitro Enamel and Cementum Fluoride Uptake from Three Fluoride–Containing Composites

In vitro Enamel and Cementum Fluoride Uptake from Three Fluoride–Containing Composites

In vitro Evaluation of a Fluoride-releasing Orthodontic Resin

Secondary Caries in situ around Fluoride-Releasing Light-Curing Composites: A Quantitative Model Investigation on Four Materials with a Fluoride Content between 0 and 26 vol%

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