EX1; The Form and Function of Anterior Teeth

Question 1

This school of articulator design focuses to put the teeth in the proper position; denies the existence of condylar axes and disregards condylar paths

Answer 1

The geometric (non-anatomical) school

Question 2

This school of articulator design involved adjustable condylar guides and average value instruments; uses the anatomy

Answer 2

The condylar (anatomic) school

Question 3

This person came up with the Equilateral Triangle Theory (1864)

Answer 3

William G. A. Bonwill

Question 4

What are the measurements of the equilateral triangle theory

Answer 4

the size of the mandible is equal to 10cm (4 in) from condyle to condyle and from each condyle to the incisor point (24/25)

Question 5

This person came up with this angle; formed between the occlusal plane and the Bonwill triangle

Answer 5

Francis H. Balkwill (1866)

Balkwill angle

Question 6

What is the degrees of the Balkwill angle

Answer 6

26º

Question 7

This is the relationship between the curved arrangement of the occlusal planes of teeth and the corresponding curves of the condylar paths

Answer 7

curve of Spee

Ferdinand Graf von Spee

Question 8

Where is the center of rotation/the location of the axis of the cylinders curvature of the curve of Spee

Answer 8

the mid orbital plane

Question 9

Where would the curve of Spee continue to when following the posterior continuation of the molars

Answer 9

to the anterior point of the condyle

Question 10

The steeper the path of the condyles the (more or less) pronounced the curve of Spee

Answer 10

more pronounced

Question 11

This person discovered that the mandible moves downward upon protrusion

Answer 11

Carl Christensen

Question 12

Christensen was the first to describe an intraoral method for what

Answer 12

obtaining a protrusive record to determine the condylar inclination

Question 13

Which arch is naturally convex in nature? concave?

Answer 13

convex = maxillary
concave = mandibular

Question 14

This person presented a method for setting denture teeth. using Bowills equilateral triangle conforming to the surface of a sphere (1898)

Answer 14

George S. Monson

Question 15

Where in the head region is Monson’s center of rotation located; Monson’s spherical theory

Answer 15

sella turcica

Question 16

What specific entity all touch at Monson’s center of rotation

Answer 16

the long axes of all teeth

Question 17

This theory states that occlusion should be spherical, the curvature of the cusps as projected on the frontal plane expressed in both arches

Answer 17

Curve of Wilson

Question 18

What is the shape of the curve of Wilson in the maxillary and mandibular arches

Answer 18

maxillary = convex
mandibular = concave

Question 19

What was considered the anatomic rotation center of the mandible according to Rupert Hall’s conical theory of mandibular movement

Answer 19

external occipital protuberance