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Fluoride release from a toothbrush.

S Zimmer1, C R Barthel, T Wagner

  • 1Charité Humboldt-University Berlin, School of Dentistry, Department of Operative and Preventive Dentistry and Endodontics, Berlin, Germany. stefan.zimmer@charite.de

The Journal of Clinical Dentistry
|July 20, 2001
PubMed
Summary
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A novel toothbrush with incorporated sodium fluoride released fluoride into saliva, though amounts decreased over time and were lower than traditional fluoride toothpaste. This suggests potential for fluoride-releasing oral hygiene devices.

Area of Science:

  • Oral Health
  • Dental Materials Science
  • Fluoride Research

Background:

  • Fluoride is crucial for preventing dental caries.
  • Conventional fluoride delivery methods include toothpaste and mouthwash.
  • Novel delivery systems are being explored to enhance fluoride efficacy.

Purpose of the Study:

  • To assess fluoride concentration in unstimulated saliva after using a toothbrush with 9,048 ppm sodium fluoride incorporated into bristles.
  • To compare fluoride release from this novel toothbrush against a 1,500 ppm fluoride toothpaste control.

Main Methods:

  • Single-blind crossover study with 12 volunteers.
  • 14-day pre-test washout period for fluoride exposure.
  • Saliva collection at multiple time points up to 180 minutes post-brushing over 28 days.

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Main Results:

  • The fluoride toothbrush demonstrated significant fluoride release immediately after brushing and up to 30 minutes on day one.
  • Fluoride release diminished over 28 days, with significance only immediately post-brushing.
  • Fluoride release from the toothbrush was consistently lower than the positive control (1,500 ppm fluoride toothpaste).

Conclusions:

  • A toothbrush with incorporated sodium fluoride can function as a fluoride-releasing device.
  • The sustained fluoride release from the novel toothbrush is less than conventional fluoride toothpaste.
  • Further research may optimize such devices for enhanced caries prevention.