Verrett Worn Dentitin

Question 1

Four types of tooth structure loss

Answer 1

1. Attrition
2. Abrasion
3. Erosion
4. Abfraction

Question 2

What are the four patterns of mechanical wear?

Answer 2

1. Anterior wear greater than posterior
2. Anterior wear progressively greater than posterior
3. Wear on facial surfaces of cuspids and premolars
4. Variable location and distribution of wear

Question 3

M1: Anterior wear greater than posterior - Etiology

Answer 3

1. Inadequate posterior wear
2. Posterior occlusal prematurity
3. Loss of posterior teeth (overuse of anteriors)

Question 4

M2: Progressively greater wear on anteriors - Etiology

Answer 4

1. Chronic bruxism

2. Can match wear facets

Question 5

M3: Wear on facial surfaces of cuspids and premolars - Etiology?

Answer 5

Toothbrushing

Question 6

M4: Wear in variable locations, primarily occlusal and incisal - Etiology?

Answer 6

Parafunctional habit

Environmental

Question 7

Chemical erosion - 3 types?

Answer 7

1. Anterior surface loss greater than posterior surface loss
2. Posterior surface loss greater than anterior
3. Variable location and distribution of wear

Question 8

C1: Anterior tooth wear etiology
A. Lingual surface
B. Facial surface

Answer 8

A. Chronic regurgitation (vomit, GERD, alcoholism)

B. Fruit sucking

Question 9

C2: Posterior tooth loss
A. Occl surface of all posteriors
B. Occl surface of mand first molar

Answer 9

A. Fruit mulling

B. Soda swishing

Question 10

C3: Variable location and distribution of wear

- Etiology

Answer 10

A. Environmental

B. Medication, drugs (vitamin C, illicit drugs, saliva)