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2015 | 1 | 1 |

Article title

Bioactivity of toothpaste containing bioactive
glass in remineralizing media: effect of fluoride
release from the enzymatic cleavage of
monofluorophosphate.

Content

Title variants

Languages of publication

EN

Abstracts

EN
Objectives. The aim was to introduce a new
methodology to characterize toothpaste containing bioactive
glass and to evaluate the effect of release of fluoride
ions, by cleaving monofluorophosphate (MFP), on the
mineral forming ability of Sensodyne Repair & Protect
(SRP). which contains NovaMinTM (bioactive glass, 45S5
composition). Methods. SRP, NovaMin particles, and placebo paste (PLA)
which did not contain NovaMin, were immersed into
a remineralization media (RS), which mimics the ionic
strength of human saliva, for 3 days with different concentrations
of alkaline phosphatase (ALP): 0, 25 and 75 U.L−1.
Ion concentration profiles and pH were monitored by ICPOES
and F− ion selective electrode. Remaining solids were
collected by freeze-drying and their surfaces analysed. Results. Hydroxyapatite (HA) formed on the surface of
BG alone (after 1 h) and in toothpaste (after 2 h), whereas
PLA did not induce any precipitation. ALP cleaved MFP at
different rates depending on the enzyme concentration.
Increasing the concentration of ALP from 0 and 75 U.L−1 reduced the time of HA formation from 2 h to 24 h. However,
the presence of fluoride induced the precipitation of
fluorapatite. No evidence of fluorite (CaF2) was observed.
The apatite formation ability of toothpaste can be assessed
using the presented method.

Keywords

Publisher

Year

Volume

1

Issue

1

Physical description

Dates

accepted
16 - 5 - 2015
online
21 - 7 - 2015
received
6 - 5 - 2015

Contributors

  • Department of
    Materials, Imperial College London, South Kensington Campus,
    London, SW7 2AZ UK
  • Department of
    Materials, Imperial College London, South Kensington Campus,
    London, SW7 2AZ UK
  • GlaxoSmithKline Consumer Healthcare, Weybridge,
    Surrey, KT13 0DE UK
  • Department of
    Materials, Imperial College London, South Kensington Campus,
    London, SW7 2AZ UK

References

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Document Type

Publication order reference

Identifiers

YADDA identifier

bwmeta1.element.-psjd-doi-10_1515_bglass-2015-0005
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