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. 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

3. Which of the statements regarding the measurement of erosion progression is untrue?

a)

The assessment of the progression of erosive processes is largely standardised

b)

Study casts are difficult to quantify

c)

Computer generated 3D images are costly

d)

Metal markers are a simple way to measure erosion

4. Which of the following factors need not be considered when diagnosing erosion?

a)

General health

b)

Salivary flow rate

c)

The clinical appearance of teeth

d)

Patient gender

5. Which of the following statements differentiates erosion from caries?

a)

Erosion is caused by extrinsic and intrinsic acids of bacterial origin; caries are caused by acids of non-bacterial origin

b)

The clinical presentation of erosion comprises localised silky shiny surface and rounded defects; caries present as white spots, with tooth surface intact initially, but later developing into rough defects

c)

Caries can be remineralised effectively with fluoride until there is no cavitation; erosive lesions can be remineralised effectively with fluoride at any stage of erosion development

d)

There is no need to differentiate caries from erosive defect because restorative treatment is needed in both cases

6. 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)

7. 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

8. 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

9. 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

10. 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

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