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Related Experiment Videos

Toothbrush abrasion caused by different dentifrices.

D L Lentz1, M D McDaniel, W E Tolbert

  • 1Department of Restorative Dentistry, University of Mississippi, School of Dentistry, Jackson 39216.

Quintessence International (Berlin, Germany : 1985)
|December 1, 1991
PubMed
Summary

Toothpaste abrasiveness varies, affecting toothbrush lifespan. Crest and Caffree caused significant bristle wear, while Colgate and water showed less wear, indicating dentifrice choice impacts toothbrush durability.

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Area of Science:

  • Dental hygiene
  • Materials science

Background:

  • Toothbrush bristle wear is a concern for effective oral hygiene.
  • Dentifrices are known to have varying abrasive properties.

Purpose of the Study:

  • To assess the abrasive impact of three commercial toothpastes (Colgate, Crest, Caffree) on toothbrush bristles.
  • To compare bristle wear caused by different dentifrice formulations.

Main Methods:

  • New toothbrushes and brushes exposed to distilled water served as controls.
  • Scanning electron microscopy (SEM) was used to examine bristle wear.
  • Independent evaluators categorized bristle wear using a standardized scale.

Main Results:

  • Crest tartar-control and Caffree gel exhibited the highest levels of bristle wear.

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  • Colgate regular flavor and distilled water showed significantly less bristle wear compared to Crest and Caffree.
  • New, unused toothbrushes displayed the least amount of wear.

    • Conclusions:

    • The type of dentifrice used directly influences the abrasive wear of toothbrush bristles.
    • Dentifrice formulation is a critical factor determining the effective lifespan of a toothbrush.