Exam 2

Question 1

INDICATIONS for anatomical denture teeth

Answer 1

Good residual ridges
Good neuromuscular control
Previous denture success
Oppose natural dentition

Question 2

INDICATIONS for NON-anatomical teeth

Answer 2

Poor residual ridges
Poor neuromuscular control
Previous denture success
Potential to miss follow-up
Arch discrepancies

Question 3

Three kinds of balanced occlusion:

Answer 3

Anatomic
Non-anatomical with compensating curve
Lingualized

Question 4

ADVANTAGES of ANATOMIC teeth

Answer 4

Esthetic is more life like
Shearing ability better
Cusp-cusp, tooth-tooth balanced occlusion possible
Positive intercuspation position possible

Question 5

DISADVANTAGES of ANATOMIC teeth

Answer 5

Balanced occlusion lost
Requires follow-up appointments and relines
Arch relation discrepancies less adaptable
Increase in horizontal forces (inc. opportunity to destabilize denture)
Difficult to set

Question 6

ADVANTAGES of NON-anatomic teeth

Answer 6

Centric Relation is an area, not a single point
Reduction in horizontal, destabilizing forces on RR
Easier to set
Adaptable to denture base shifting
Movement freedom
Solid occlusion developed

Question 7

DISADVANTAGES of NON-anatomical teeth

Answer 7

Shearing ability is poor
Esthetics are not as good
Lack a positive intercuspal position

Question 8

Areas of relief in mouth:

Answer 8

Flabby tissues
Incisive papillae
Tori
Thin ridges
Exostoses
Mental foramen
Palatal suture

Question 9

Purpose of record bases + wax rims:

Answer 9

Establish:
Neutral zone
Occlusal plane
Vertical dimension of occlusion
Preliminary centric relation record

Question 10

Anterior occlusal plane is…

Answer 10

Parallel to interpupillary line
Or
Perpendicular to midline

Question 11

Posterior occlusal plane is…

Answer 11

Parallel to Campers line

AKA: ala-tragus line, 10 degrees inferior to Frankfort horizontal

Question 12

Choosing Anterior Teeth

Answer 12

(URRN)
Understand their function
realize esthetics
Realize selection is huge
Narrow down choices (manufacturer, line, mould, shade)

Question 13

Choosing Posterior teeth:

Answer 13

(URIN)
Understand their function
Realize selection is huge
Identify occlusal scheme
Narrow down choices

Question 14

Advantages of plastic teeth:

Answer 14

Readily available
Impact resistant
Chemical retention
Easily adjusted

Question 15

Disadvantages of porcelain teeth:

Answer 15

Difficult to adjust
Abrasive
Require mechanical retention
Not impact resistant

Question 16

Anatomical landmarks for neutral zone:

Answer 16

Bucco-lingual

1. Over to ridge
2. Lingual control line (mesial of canine to mesial retromolar pad)

Occluso-gingival

1. Resting tongue
2. Resting lower lip
3. Modiolus
4. Half to 2/3 retromolar pad area