In vitro Evaluation of a Fluoride-releasing Orthodontic Resin

Chan, Daniel C.N.; Swift, Edward J.; Bishara, Samir E.

doi:10.1177/00220345900690090801

Cited by 43 publications

(12 citation statements)

References 16 publications

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“…In the present study, Super-Bond/F3 released relatively a large amount of fluoride during the 6-month period, which was significantly greater than the value for Transbond Plus, but lower than the value for Fuji Ortho LC, except first day. Although Super-Bond/F3 requires self-etching for the bracket-bonding procedure 19) , the fluoride-releasing ability of Super-Bond/F3 may promote remineralization of the enamel around the bonded bracket on the enamel surface 13,20) . The use of cross-sectional microhardness measurements with a Knoop indenter has been a popular method for quantitatively investigating the demineralization of enamel 6,8,9) , since there is a strong correlation (R 2 =0.84-0.92) between enamel microhardness and mineral content determined by transversal microradiography in carious lesions 8,21,29) .…”

Section: Discussionmentioning

confidence: 99%

Effects of the addition of fluoride to a 4-META/MMA-TBB-based resin adhesive on fluoride release, acid resistance of enamel and shear bond strength in vitro

et al. 2013

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This study investigated fluoride release, acid resistance and shear bond strength (SBS) of new 4-META/MMA-TBB-based fluoridecontaining resin adhesive (Super-Bond/F3). Super-Bond, Transbond Plus and Fuji Ortho LC were selected for comparison. Fluoride release into distilled water during 6-month period was measured using disk-shaped specimens. Brackets were bonded to human premolars with each material and then the specimens for the nanoindentation test were subjected to alternating immersion (demineralizing and remineralizing solutions); the hardness and elastic modulus of the enamel around bracket were determined. Rest of the specimens was subjected to examine the SBS. Super-Bond/F3 and Fuji Ortho LC showed significantly greater fluoride release compared with the other materials. The reductions in hardness and the elastic modulus for Super-Bond/F3 and Fuji Ortho LC were lower than those for the other materilas. Super-Bond and Super-Bond/F3 showed significantly greater SBS than Fuji Ortho FC. In conclusion, Super-Bond/F3 showed high fluoride-release, cariostatic potential and equivalent SBS.

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Section: Discussionmentioning

confidence: 99%

Effects of the addition of fluoride to a 4-META/MMA-TBB-based resin adhesive on fluoride release, acid resistance of enamel and shear bond strength in vitro

et al. 2013

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“…For example, the fluoride release from fluoride-releasing (bonding) materials is characterized by an initial fluoride burst on the first day, after which the fluoride release drops rapidly [Chan et al, 1990;Wiltshire and van Rensburg, 1995]. Therefore it seems to be important to investigate the final caries-inhibiting effect of the preventive measures after debonding.…”

Section: Discussionmentioning

confidence: 99%

Caries-Inhibiting Effect of Preventive Measures during Orthodontic Treatment with Fixed Appliances

et al. 2004

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A systematic review was performed of published data on the caries-inhibiting effect of preventive measures during orthodontic treatment with fixed appliances. The purpose was to develop evidence-based recommendations about the most effective means of preventing white spot lesions in orthodontic patients. The 15 studies included were divided into four groups based on comparable preventive measures: fluoride, chlorhexidine, sealants and bonding materials. The caries-inhibiting effect of the preventive measures was expressed by the prevented fraction (PF). The overall PF of the fluoride-releasing bonding materials was 20% (SEM 0.09). This effect was, however, not statistically significant. It was impossible to calculate an overall PF for the other preventive measures, but the tendency of their caries-inhibiting effect has been described. The use of toothpaste and gel with a high fluoride concentration of 1,500–5,000 ppm or of complementary chlorhexidine during orthodontic treatment showed a demineralisation-inhibiting tendency. The use of a polymeric tooth coating on the tooth surface around the brackets showed almost no demineralisation-inhibiting effect. Many publications had to be excluded from this systematic review because of improper research designs. Future clinical trials are needed to give evidence- based advice on the optimal caries-prevention strategy.

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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%

“…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.…”

mentioning

confidence: 99%

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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In vitro Evaluation of a Fluoride-releasing Orthodontic Resin

Cited by 43 publications

References 16 publications

Effects of the addition of fluoride to a 4-META/MMA-TBB-based resin adhesive on fluoride release, acid resistance of enamel and shear bond strength in vitro

Effects of the addition of fluoride to a 4-META/MMA-TBB-based resin adhesive on fluoride release, acid resistance of enamel and shear bond strength in vitro

Caries-Inhibiting Effect of Preventive Measures during Orthodontic Treatment with Fixed Appliances

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

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