Complete Dentures

Question 1

height between noise and chin at rest

Answer 1

vertical dimension of rest (VDR)

Question 2

when the elevator and depressor muscles are in a state of equilibrium

Answer 2

physiological rest position (PRP)

Question 3

At VDR, there is typically _______ of space between upper and lower premolars.

Answer 3

3mm

Question 4

height between nose and chin during occlusion, used to illustrate the relationship of the maxilla and mandible during occlusion in MIP

Answer 4

VDO

Question 5

formula for interocclusal space

Answer 5

VDR - VDO

Question 6

ideal distance for interocclusal space

Answer 6

2-4mm

Question 7

excessive vs insufficient VDO

Answer 7

Excessive VDO- interocclusal space is <2mm

Insufficient VDO- interocclusal space >4mm

Question 8

Signs of excessive VDO

Answer 8

• muscles of mastication fatigue
• clicking noise of posterior teeth during speaking
• both excessive trauma to supporting tissues and display of mandibular teeth
• unable to wear dentures
• gagging

Question 9

Signs of insufficient VDO

Answer 9

• angular cheilitis
• aging appearance of lower 1/3 of face
• decreased occlusal force

Question 10

distal gap between the maxilla and mandibular teeth during the mandible protrusion

Answer 10

Christensen’s phenomenon

Question 11

theoretical line between pupils of the eyes

Answer 11

interpupillary line

Question 12

theoretical line from ala of noise to tragus of ear

Answer 12

Camper’s line

Question 13

maxillary occlusal rim must be parallel to these two lines

Answer 13

interpupillary line
Camper’s line

Question 14

metal instrument used for ensuring that the maxillary occlusal rim is parallel to the interpupillary and Camper’s lines

Answer 14

fox plane

Question 15

occlusion that occurs when only the palatal cusps of the maxillary posterior teeth contact the mandibular posterior teeth

Answer 15

lingualized occlusion

Question 16

occlusion that occurs when there is both anterior and bilateral posterior contacts (tripodization) in centric and eccentric movements

Answer 16

balanced occlusion

Question 17

the curve of the mandibular occlusal plane recognized from the beginning of the tip of lower cuspid and following the buccal cusps of the posterior dentition and stopping at the terminal molar

Answer 17

Curve of Spee

Question 18

flatter curve of Spee =

Answer 18

faster separation of teeth (disclusion)

Question 19

mediolateral curve that follows posterior cusp tips to ensure proper loading into the long axis of each tooth

Answer 19

Curve of Wilson