Week 4 - Use and development of the Dental Articulator

Question 1

What is the importance of articulator mounting?

Answer 1

When we make impressions, we need to have vectors of movement to give it funcitonality

Question 2

What are the 3 types of dental articulators?

Answer 2

Non-adjustable articulators
Semi-adjustable articulators
Fully adjustable articulators

Question 3

Non-adjustable articulators

Answer 3

They often lead to restorations with occlusal discrepancies, as they cannot reproduce the full range of mandibular movements

Question 4

Semi-adjustable articulators

Answer 4

They are about the same size as the anatomic structure they represent
Using a bow-face transfer, the casts can be positioned with sufficient accuracy that will minimize the need for clinical adjustment
Can allow for the Bennett Side Shift

Question 5

Fully adjustable articulators

Answer 5

Have a wide range of positions and can be set to follow patient’s border movements

Question 6

Pantograph

Answer 6

A device that is used in conjunction with a fully adjustable articulator to follow the tracings of the mandible
Gives 6 graphs - 3 on either side

Question 7

What are the planes of a pantograph?

Answer 7

Horizontal plane

Sagittal plane

Question 8

Bennett’s angle

Answer 8

Movement along the horizontal of a pantograph

Question 9

Fischer’s angle

Answer 9

Movement along the sagittal plane of a pantograph