Test your knowledge

1. 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

2. Which of the categories below does not describe tooth wear?

a)

Attrition

b)

Caries

c)

Erosion

d)

Abrasion

3. Which of the following statements is not true regarding the Basic Erosive Wear Examination (BEWE) index?

a)

BEWE is a new scoring system for erosion development for the general practitioner

b)

BEWE gives guidance towards clinical management of erosion

c)

BEWE classifies clinical erosion defects and allows allocation in risk levels

d)

BEWE is a scoring system developed for epidemiological studies

4. Which of the following statements is not true regarding wedge-shaped defects?

a)

Wedge-shaped defects can be worsened by dental erosion

b)

Wedge-shaped defects should always be treated with adhesives; there is no need to assess aetiology

c)

Wedge-shaped defects may also be prone to caries

d)

Wedge-shaped defects have a multicausal aetiology

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. Which of the following statements is not true, regarding the acid-resistant coat obtained with dental products containing stannous ions?

a)

Only the stannous ions incorporated in the outermost layers of the enamel show proven efficacy against erosion

b)

The stannous forms a depot on the tooth surface which already has protective properties against erosion

c)

Stannous ions form an insoluble reservoir on the tooth surface

d)

Stannous ions will be integrated in the outermost layer of the affected tooth at a later stage

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

a)

Saliva

b)

Blood

c)

Enamel

d)

Dentine

8. Which of the following statements is not true regarding the BEWE diagnostic system?

a)

It is a tool which helps to guide the practitioner in erosion management

b)

It’s a simple scoring system that evaluates the severity of erosion

c)

It was created because of a lack of harmonisation in the erosion diagnosis methods

d)

The scores of all the teeth are recorded

9. What is the estimated prevalence of signs of erosion in the Western population?

a)

20%

b)

30%

c)

50%

d)

70%

10. 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

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