Test your knowledge

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

a)

Saliva

b)

Blood

c)

Enamel

d)

Dentine

2. Presence of erosive lesions often positively correlates with:

a)

Caries activity

b)

Fast drinking habit

c)

High buffering capacity of saliva

d)

Low salivary flow rate

3. 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)

4. 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

5. According to the BEWE system, what does a 2 represent in the scoring of erosive lesions?

a)

Distinct defect, dental hard tissue loss of more than 50% of the surface area

b)

No surface loss

c)

Distinct defect, dental hard tissue loss of less than 50% of the surface area

d)

Initial loss of surface texture

6. What might be a clinical presentation of erosion?

a)

Erosion can lead to wedge-shaped defects with depth clearly exceeding width and sharp edges

b)

Erosion shows flat glossy areas with distinct margins and corresponding defects on antagonistic teeth

c)

Erosion can lead to defects with depth clearly exceeding width and sharp edges

d)

Erosion shows rounded edges and often shows a rim of intact enamel along the gingival margin of facial surfaces due to the protection by sulfus fluid and / or plaque

7. Which of the following statements is not true regarding the influence of saliva on erosion?

a)

Saliva neutralises acid and prevents acidification by providing tooth minerals

b)

Increasing a low salivary flow rate can under no means stop the aggravation of erosion

c)

The efficacy against erosion is determined mainly by its composition and flow rate

d)

Saliva is the source of the dental pellicle, which has protective properties

8. What is the most common extrinsic cause of dental erosion?

a)

Frequent consumption of acidic food and drinks

b)

Inadequate dental hygiene habits

c)

Gastro-oesophageal reflux disease (GORD)

d)

Illegal drugs, such as ecstasy

9. Which of the following clinical findings may be a sign of erosion?

a)

Teeth covered with plaque and a high gingival bleeding index

b)

Deep, dark coloured cavities in approximal areas

c)

Rounded cusps and grooves on molars and incisal edges

d)

Molars and incisal edges which seem to be cut in an occlusal line

10. How does elmex^® EROSION PROTECTION dental rinse potentially protect teeth from erosive dental hard tissue loss?

a)

It leads to the formation of an amorphous precipitate rich in stannous ions on the tooth surface

b)

It encourages the integration of insoluble stannous-compounds into the outermost tooth layers

c)

It makes enamel and dentine more resistant to erosive acid attacks

d)

All of the above

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