Articulators

Question 1

Class 1 Articulator alt name/classification

Answer 1

non-adjustable

Question 2

Movement of class 1 articulator

Answer 2

vertical only

Question 3

Adjustments of class 1 articulator

Answer 3

none

Question 4

What is class 1 articulator used for

Answer 4

occlusal contact position which is the maximum intercuspal position

Question 5

Articulator definition

Answer 5

a mechanical device for mounting a patients dental arch casts to perform dental procedures w/o the patient needing to be present

Question 6

Class 2 articulator alt name

Answer 6

Non-adjustable

Question 7

Movements of Class 2 articulator

Answer 7

vertical and horizontal-NOT TMJ

Question 8

Cons of class 2 articulator

Answer 8

Time adjusting restoration performed due to inaccurate eccentric movements causing poor anatomic form/occlusal relationships

Question 9

Main use of Class 2 articulator

Answer 9

For single crown preps-these are the most used one for this

Question 10

Class 3 Classification/name

Answer 10

Semi-adjustable

Question 11

Movements allowed of class 3 articulator

Answer 11

condylar pathways via averages for all parts of motion; arcon and non-arcon

Question 12

Define arcon. Why is this applicable to our class?

Answer 12

Arcon means it has condylar elements on the lower member and condylar guidance on the upper

Question 13

Adjustments the Class 3 articulator allows for

Answer 13

Condylar inclination
Lateral translation also known as Bennet Angle and side shift
Condylar distance

Question 14

Class 4 articulator is also known as

Answer 14

fully adjustable

Question 15

Motion of Class 4 articulator

Answer 15

3D Dynamic registration

Question 16

Possible adjustments for Class 4 articulator (how many)

Answer 16

14

Question 17

What is special about a class 4 articulator

Answer 17

it allows for orientation of the casts to the TMJ and stimulation of mandibular movements

Question 18

Centric lock closed

Answer 18

when this is closed the articulator only moves up and down (hinging)

Question 19

Centric lock open

Answer 19

lateral and forward movements possible

Question 20

Condylar inclination aka

Answer 20

horizontal condylar inclination

Question 21

What does the condylar inclination represent

Answer 21

the shape and steepness of the articular eminence

Question 22

Lower member of the articulator represents what

Answer 22

the mandible-provides attachment for lower cast

Question 23

Upper member of the articulator represents what

Answer 23

represents the maxilla; provides attachment for upper cast

Question 24

incisal pin

Answer 24

represents the incisal edges of the lower anterior teeth

Question 25

mechanical table

Answer 25

represents the lingual of the upper ant teeth

Question 26

Is the denar 330 arcon or non-arcon?

Answer 26

Arcon: it has condylar elements on the lower membrane and condylar guidance on the upper

Question 27

What is the adjustability of the denar 330

Answer 27

semi-adjustable: allows some adjustments to make condylar movement more similar to patient so that the tooth contacts patterns duplicate these in the patient

Question 28

Condylar distance of denar 330 is fixed at what

Answer 28

110mm

Question 29

Condylar balls

Answer 29

Fit in condylar housing and represent the condyles of the TMJ

Question 30

Settings for the denar 330

Answer 30

Condylar inclination at 30
Bennet angle at 15
Immediate side shift is at 0