Test your knowledge

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

a)

Certain medicines / drug abuse

b)

Strenuous exercise

c)

Lactovegetarian diet

d)

Oral hygiene products with fluoride content

2. Why is erosion difficult to detect in its early stages?

a)

Erosion is rare

b)

Clinical signs are subtle

c)

Patients begin to experience pain as erosive lesions develop

d)

Patients experience pain before the dentine is exposed

3. elmex^® EROSION PROTECTION toothpaste has been specifically formulated to help protect teeth against erosive acid attacks, against toothbrushing-related loss of softened enamel and against caries. It works in multiple ways. Which of the below statements is not true:

a)

The ChitoActive technology™ leads to the formation of a protective layer on the tooth surface.

b)

Chitosan is incorporated into the softened enamel, making it more resistant against further erosive acid attacks and against loss of softened enamel caused by toothbrushing.

c)

Stannous compounds from the protective layer are incorporated into the softened enamel, making it more resistant against further erosive acid attacks and against loss of softened enamel caused by toothbrushing.

d)

Amine fluoride protects against caries.

4. Which of the following is not a primary prevention technique of dental erosion?

a)

Education about aetiology and erosion mechanisms

b)

Assessment of dietary intake and behavioural factors

c)

Promotion of adequate oral hygiene habits

d)

Strengthen eroded teeth with an erosion protection dental rinse just after acidic challenges

5. Which of the following is not one of the main biological factors related to erosion?

a)

Saliva

b)

Blood

c)

Enamel

d)

Dentine

6. Certain oral hygiene procedures can increase the symptoms of erosion. Why?

a)

They are highly abrasive and are used incorrectly (e.g. using too much pressure when brushing teeth)

b)

They have a low pH but have active ingredients such as polyvalent cations or fluorides

c)

They have a high pH and additionally can buffer a drop in pH

d)

They are gentle on the teeth

7. Which of the following statements is correct in respect to caries and erosion?

a)

Caries and erosive defects will never be seen together in one patient

b)

Both result in hard tissue defects which are first treated with minimally-invasive fillings in first instance

c)

For both diseases, there does not exist any primary prevention techniques

d)

For both diseases, flouride containing rinses may constitute part of the therapy

8. Which of the following statements best describes the type of tooth wear, which might occur when a patient consistently brushes their teeth immediately before exposure to erosive agents?

a)

A reduction of the pellicle which reduces the protection against erosion from acidic foods and drinks

b)

Enamel wear due to attrition alone

c)

Abrasion due to softening of the enamel

d)

Increased vulnerability to erosion due to the softening of the dentine

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

10. What kind of toothbrush is recommended for people at risk of erosion or patients with erosion?

a)

a soft toothbrush

b)

a toothbrush of medium hardness

c)

a hard toothbrush

d)

No toothbrush, as you should not brush at all (too much abrasion)

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