Occlusion L1 - Occlusion static module 2 review

Question 1

If there is stagnation between the contact points what can that lead to?

Answer 1

Caries risk

Question 2

It is important to restore contact points when restoring teeth, how do contact points support the teeth?

Answer 2

They offer arch alignment/stability

Question 3

Which dental arch is slightly longer than the other dental arch?

Answer 3

Upper dental arch is slightly longer

Question 4

Describe the contact relationship of the teeth on the upper dental arch with the lower dental arch?

Answer 4

Each upper tooth contacts with its lower antagonist and its distal neighbour

Question 5

What determines tooth alignment?

Answer 5

Path of eruption

Forces exerted on the teeth by, teeth, soft tissues, other factors such as thumb

Question 6

What is the neutral zone in reference to tooth alignment?

Answer 6

Zone of equilibrium between forces exerted on a tooth.

Question 7

The neutral zone is clinically important when constructing a what?

Answer 7

Denture

Question 8

Upper molar occlusal surfaces face in which direction and at which angle?

Answer 8

Upper molar occlusal surfaces face buccally at a 20-degree angle.

Question 9

Lower molar occlusal surfaces face in which direction?

Answer 9

Lingually

Question 10

Are the lower buccal cusp more lingual than the upper buccal cusp?

Answer 10

Yes

Question 11

How would you describe the position of the upper buccal cusp in relation to the lower buccal cusp in a bilateral cross bite?

Answer 11

The upper buccal cusp is more lingual than the lower buccal cusp

Question 12

Name this bite?

Answer 12

Bilateral cross bite

Question 13

Name this bite?

Answer 13

Unilateral crossbite

Question 14

How would you describe the position of the upper buccal cusp in relation to the lower buccal cusp in a unilateral cross bite?

Answer 14

The left/right upper buccal cusp is more buccal than the lower buccal cusp and other cusp is opposite.

Question 15

Which teeth determines the angle classification?

Answer 15

Angle classification is determined by 6’s relationship between MB cusp of upper 6 and the MB groove of lower 6.

Question 16

What are the names of each class?

Answer 16

class 1

Question 17

What are the names of each class?

Answer 17

class 2

Question 18

What are the names of each class?

Answer 18

class 3

Question 19

which class?

Answer 19

Class 1 – the MB cusp of the upper 6 sits in the MB groove of the lower 6

Question 20

which class 2

Answer 20

Class 2 – the MB cusp of the upper 6 sits on the DB cusp of the lower 5, whilst the MB cusp of the lower 6 sits in the MB groove of the upper 6

Question 21

which class 3

Answer 21

Class 3 – the MB cusp of the upper 6 sits on the DB of the lower 6.

Question 22

Incisor relationship – what is the name given when tooth overlap in the vertical plane

Answer 22

Overbite

Question 23

Incisor relation – tooth overlap in the horizontal pane

Answer 23

Overjet

Question 24

What locations on incisors determine the incisor classification?

Answer 24

Relationship between lower incisor tip to cingulum plateau of the upper incisor.