Centric Occlusion

Question 1

A condylar position that is in the most anterior and superior position within the gleaned fossa with the articular dice properly interposed agains the articular eminence with no tooth contact is called what?

Answer 1

Centric relation (CR)

Question 2

The position of the mandible when the relationship of opposing occlusal surfaces provides for maximum planned contact or intercuspation is called what?

Answer 2

Centric Occlusion (CO) also known as Maximum intercuspation (MI) Intercuspal position (ICP) or Habitual occlusion (HB)

Question 3

What is the formula used to determine freeway space?

Answer 3

VDR-VDO=Freeway space

Question 4

An imaginary line between the mandibular condyles around which the mandible can rotate without translatory movement is what?

Answer 4

Hinge Axis

Question 5

The movement in space characterized by two divergent points moving around a central axis of rotation is what?

Answer 5

Hinge movement

Question 6

The vertical dimension of the face (as determined by a midline vertical measurement of the face between two arbitrary points above and below the mouth) when the mandible is in centric occlusion. What is this?

Answer 6

Vertical Dimension of Occlusion

Question 7

The vertical dimension of the face when the mandible is in postural rest position; that is the “resting” position of the mandible when an individual is sitting or standing in an upright position, as determined by the muscles and other tissues that attach to the mandible is what?

Answer 7

Vertical dimension of rest

Question 8

Nonocclusion or the loss of occlusal contact between opposing teeth during tooth-guided movements or positionings of the mandible is considered what?

Answer 8

Disclusion

Question 9

The distance, commonly 2 to 4 mm, between the occluding surfaces of the maxillary and mandibular teeth when the mandible is in postural rest position is called what?

Answer 9

Interocclusal distance (freeway space)

Question 10

The movement in space characterized by linear motion with no axis of rotation is called what?

Answer 10

Translatory movement

Question 11

Movement of the mandible in an anterior direction with an anterior translation of both condyles is called what?

Answer 11

Protrusion

Question 12

Retraction or posterior movement of the mandible from any given point is called what?

Answer 12

Retrusion

Question 13

Sideward movement of the mandible from a median occlusal position and characterized by a forward, inward and downward translation of the contralateral condyle is called what?

Answer 13

Lateral Excursion