Review of Current Toothpaste Abrasion Limits

  • Saturday 1/29/2022
  • Time: 1:00 - 2:00 pm
  • Course Code: 688SL
  • Cost: No Charge
  • Room Location: BCEC Exhibit Floor Classroom A
  • Credits: 1 CE Hour
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Samuel St. John, PhD has co-authored 21 peer-reviewed publications, applied for 4 patents, and given over 20 invited conference talks around the world including to the ISO standards organization, the American Dental Association, and several University’s undergraduate and graduate seminars.

The origin of our modern abrasion safety limits for dentifrices dates back over a century. During this period, dental scientists conducted detailed research to answer the following questions: how abrasive does a dentifrice need to be, how much abrasion is too much, and how do we measure abrasion efficiently and effectively in the laboratory. The success of this endeavor was the result of a unique partnership that included clinical, academic, industrial, and regulatory disciplines. This research resulted in the development and implementation of methodologies to measure tooth abrasion and broad scale adoption of recommended safety standards. The purpose of this course is to provide a condensed historical account of clinical and technical research on dentifrice abrasivity, which culminated in the methods we use and standards we apply for today’s commercial dentifrices.  It is hoped that this information will help researchers to not only recognize and appreciate the sound, scientific basis for current models, but also to help them remember a few key concepts that remain relevant to the continued evolution of dentifrice abrasion models.

After this course attendees will be able to:
  • Understand the science used to determine the current abrasive limit of RDA 250
  • Determine how abrasive a dentifrice needs to be and how much abrasion is too much
  • Explain how to measure abrasion efficiently and effectively in the laboratory
  • Reaffirm the current FDA abrasive limits
Recommended Audience: Dentist, Hygienist
Ambient Noise Disclaimer: Please note that this course will be held on the Exhibit Hall Floor and will be subject to ambient noise.
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