Week 2 - Occlusion and TMD

Question 1

What are the 9 Specialties in the ADA?

Answer 1

Prosthodontics
Periodontics
Orthodontics
Pediatric Dentistry
Dental Public Health
Oral and Maxillofacial Pathology
Oral and Maxillofacial Radiology
Oral and Maxillofacial Surgery
Endodontics

Question 2

What are the subspecialties that make up Prosthodontics

Answer 2

Occlusion and TMD
Esthetic (Cosmetic) Dentistry
Fixed Prosthodontics
Removable Prosthodontics
Digital Dentistry
Dental Laboratory Technology
Dental Materials
Maxillofacial Prosthetics
Implant Prosthetics

Question 3

What are the two schools of Articular Design?

Answer 3

Geometric (non-anatomic) school

Condylar (anatomic) school

Question 4

Geometric school of articular design

Answer 4

Denied existence of condylar axes and disregarded the condylar paths as influences of occlusion
Claimed that the articulation of teeth guides the mandible during mastication

Question 5

Condylar school of articular design

Answer 5

Adjustable condylar guides
Average value instruments
Condyles guided mastication/occlusion

Question 6

William G. A. Bonwill

Answer 6

Came up with the Equilateral Triangle Theory

Question 7

Equilateral Triangle Theory

Answer 7

The size of the mandible is equal to 4 inches (10 cm) from condyle to condyle, and from each condyle to the incisor point

Question 8

Francis H. Balkwill

Answer 8

Came up with the idea of the Balkwill Triangle

Question 9

Balkwill Triangle

Answer 9

Triangle form the distoliwngual cusp of the 2nd molars to the midline of the mandibular incisors

Question 10

Balkwill Angle

Answer 10

Between the Balkwill triangle and Bonwill triangle

~26 degrees

Question 11

Ferdinand Graf von Spee

Answer 11

Came up with the Curve of Spee

Question 12

Curve of Spee

Answer 12

“The relationship between the curved arrangements of the occlusal planes of natural teeth and the corresponding curves of the condylar paths”

-the posterior continuation of the curve of the teeth touches the most anterior point on the condyle

Question 13

According to the Curve of Spee, what is the center of the curve?

Answer 13

Mid-orbital plane

Question 14

According to the Curve of Spee, the steeper the path of the condyles…..

Answer 14

The more pronounced the tooth curvature

Question 15

Carl Christensen

Answer 15

Came up with Christensen’s Phenomenon

Was also the first to describe an intramural method for obtaining a protrusive record to determine condylar inclination

Question 16

Christensen’s Phenomenon

Answer 16

The space between the posterior teeth (max and man) during protrusion
-incisors are touching, but the posteriors are not

Question 17

How did Carl Christensen determine condylar inclination?

Answer 17

He put wax in the patient’s mouth and after they moved it, the maxillary arch was cast

Question 18

George S. Monson

Answer 18

Came up with Monson’s Spherical Theory

Question 19

Monson’s Spherical Theory

Answer 19

Stated that the Sala tursica was the center of mandibular rotation
-the mouth was basically in contact with a large sphere, and the sala tursica was the center

Question 20

George H Wilson

Answer 20

Came up with the Curve of Wilson

Question 21

Curve of Wilson

Answer 21

The mediolateral curve of the mouth across the frontal plane
Lower arch = concave
Upper arch = convex

Question 22

Rupert E. Hall

Answer 22

Came up with the Conical theory of mandibular movement

Question 23

Conical Theory of Mandibular movement

Answer 23

The theory that the occipital protuberance was the center of anatomical rotation of the mandible