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Updated: Sep 27, 2025

Mimicking and Measuring Occlusal Erosive Tooth Wear with the "Rub&Roll" and Non-contact Profilometry
Published on: February 2, 2018
Knowledge about caries and erosive tooth wear is confused among Norwegian high school students
Vibeke Hervik Bull1, Elisabeth Lind Melbye1
1Oral Health Centre of Expertise in Rogaland, Stavanger, Norway.
Objectives:
This study investigated differences in high school students' subjective and objective knowledge- and concerns about preventing caries and/or erosive tooth wear and the associations between these variables.
Materials And Methods:
A survey was conducted among students at 16 high schools in Norway. The survey included a range of fact-based questions to measure objective knowledge about caries and erosive tooth wear, as well as questions about students' perceptions of his/her own knowledge (subjective knowledge) and concerns about preventing the two conditions.
Results:
There were small differences in subjective knowledge about caries and erosive tooth wear among the 784 students who completed the survey (p < .01). However, students scored significantly higher on objective knowledge about caries (mean 2.99) than about erosive tooth wear (mean 1.45), p < .01, and seemed to confuse the two conditions. By contrast, students scored significantly worse on questions about beverages' potential to cause caries (mean 5.18) than to cause erosive tooth wear (mean 6.30), p < .001. Finally, objective knowledge about caries was positively associated with subjective knowledge about caries, but corresponding associations could not be found for erosive tooth wear.
Conclusions:
Knowledge about caries and erosive tooth wear seemed to be confused among Norwegian high school students.
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