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Journal of Radioanalytical and Nuclear Chemistry

, Volume 249, Issue 2, pp 487–489 | Cite as

Evaluation of the precision in the dentifrice abrasivity measurements obtained by a radiotracer method

  • I. M. C. Camargo
  • C. C. C. Zoppe
  • M. SaikiEmail author
  • M. B. A. Vasconcellos
Article

Abstract

The radiotracer method was applied to evaluate the precision of themeasurements of abrasivity data obtained for dentifrice samples and for abrasiveagents (silica and calcium carbonate). This method consists of measuring 32P transferred to a dentifrice or abrasive slurry when an irradiated dentinis submitted to a brushing simulation. Results obtained for abrasivity indiceshad good precision with relative standard deviations lower than 11.8%. Comparisonsmade between our abrasivity index data with those obtained at the Oral HealthResearch Institute of Indiana University also showed a good agreement.

Keywords

Calcium Standard Deviation Physical Chemistry Inorganic Chemistry Relative Standard Deviation 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Kluwer Academic Publishers/Akadémiai Kiadó 2001

Authors and Affiliations

  • I. M. C. Camargo
    • 1
  • C. C. C. Zoppe
    • 1
  • M. Saiki
    • 1
    Email author
  • M. B. A. Vasconcellos
    • 1
  1. 1.Supervisăo de RadioquimicaInstituto de Pesquisas Energéticas e NuclearesSăo Paulo, SPBrazil

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