Test your knowledge





4. Which of the following common foods and drinks may have an erosive effect?
a)


b)


c)


d)




5. Erosion can be caused or aggravated by various extrinsic factors. Which of the following do not apply?
a)


b)


c)


d)





7. Which of the following may never be the first visible signs of erosion?
a)


b)


c)


d)





9. According to the BEWE scoring system, which of the following numbers represents the most severe level of erosion?
a)
1


b)
3


c)
5


d)
10




After having answered all questions, you can start the automated evaluation by clicking on "Evaluation."