Occlusion and TMD

Question 1

what are the two schools of articulator design?

Answer 1

Geometric (non-anatomic) design

Condylar (anatomic) design

Question 2

Which school denied the existance of condylar axes and disregarded the condylar paths as influences n occlusion?

Answer 2

Geometric (non-anatomic) design

Question 3

Which school claimed that the articulation of teeth guides the mandible during mastication?

Answer 3

Geometric (non-anatomic) design

Question 4

What school uses adjustable condylar guides and average value instruments?

Answer 4

condylar (anatomic) design

Question 5

who proposed the equilateral triangle theory?

Answer 5

william bonwill

Question 6

The equilateral triangle theory states that the size of the mandible is equal to ___cm (__ inches) from condyle to condyle and from each condyle to the ____ point.

Answer 6

10; 4; incisor

Question 7

what is formed between the occlusal plane and Bonwill triangle?

Answer 7

balkwill angle

Question 8

The curve of Spee is the anteroposterior curve extending from the tip of the mandibular ___ along the ___ cusp tips of the mandibular posterior teeth.

Answer 8

canine; buccal

Question 9

T/F. The degree of the curvature of the curve of Spee influences the height of the posterior cusps that will function in harmony with mandibular movement.

Answer 9

True.

Question 10

Regarding the Curve of Spee, the location of the axis of that cylinder’s curvature is at the level of the ___ __-___ plane.

Answer 10

horizontal mid-orbital

Question 11

If one moves their jaw until the incisors touch (protrusion) the space that occurs between the maxilla and the mandible is known as the ____ phenomenon.

Answer 11

Christensen’s

Question 12

Christensen was the first to describe an intraoral method for obtaining a ____ record to determine the condylar inclination.

Answer 12

protrusive

Question 13

T/F. During Christensen’s phenomenon, there is maximal occlusion of the posterior teeth.

Answer 13

False. There is no occlusion of posterior teeth.

Question 14

Where did Monson’s Spherical Theory set the center of rotation?

Answer 14

at the sella turcica

Question 15

Monson spherical theory used Bonwill’s equilateral triangle to create a ___.

Answer 15

pyramid

Question 16

T/F. Monson’s Spherical Theory states that everything is aligned at the surface of the sphere.

Answer 16

True.

Question 17

According to the Curve of Wilson, the curvature is ___ in the maxillary arch and ___ in the mandibular arch.

Answer 17

convex; concave

Question 18

In the Curve of Wilson, a line is drawn through the ___ and ___ cusp tips of both the right and left posterior teeth revealing a curved plane of occlusion.

Answer 18

buccal and lingual

Question 19

Rupert Hall declared that the ___ ___ ___ was the anatomic rotation center of the mandible.

Answer 19

external occipital protuberance