Chapter 12

Question 1

Limit to placement of mandibular molars:

Answer 1

beginning of incline of retromolar pad (to prevent dislodgement) if no incline, then not over the retromolar pad

Question 2

maxillary teeth should not be placed here posteriorily:

Answer 2

slope leading down to the hamular notches

Question 3

Alignment of 1st premolar:

Answer 3

buccal of tooth aligns w buccal of canine, CG of first premolar aligns with either the contact point between the canine and lateral incisor or the tip of the canine

Question 4

Man molar placement:

Answer 4

directly over residual ridge

Question 5

CG alignment for premolars and molars:

Answer 5

directly over residual ridge and in lin e with each other

Question 6

Vertical placement of mandibular posteriors:

Answer 6

plane of occlusion: middle to upper one-third of the retro-molar pad and midway bw max and man residual ridges and parallel to both ridges

Question 7

If occlusal plane needs to be adjusted, should it be raised or lowered?

Answer 7

lowered, decrease height of teeth above mandibular residual ridges, decrease cantilever forces, and increases stability of mandibular denture`

Question 8

Alignment of CG of 1st man premolar:

Answer 8

aligned along a line extending from the tip of the canine and the mesial contact point of the canine and lateral incisor (?)

Question 9

Placement of most man posteriors should be here:

Answer 9

over residual ridge

Question 10

Most important man tooth to center over the residual ridge:

Answer 10

most posterior man

Question 11

The premolars are often placed buccal/ lingual to the residual ridge:

Answer 11

buccal

Question 12

posterior plane of occlusion location:

Answer 12

at level of middle to upper one-third of the retromolar pad, midway bw opposing residual ridges, and parallel to both ridges

Question 13

Order of placement of denture teeth:

Answer 13

max anterior, man anterior, man post, max posterior

Question 14

primary goal in posterior tooth arrangement prior to the trial insertion appt:

Answer 14

attain CO contacts

Question 15

Why is there less concern for potential excursive prematurities when setting teeth prior to the trial insertion?

Answer 15

potential for excursive prematurities for a nonbalanced occlusion are minimal, can’t be evaluated until the condylar inclination has been determined (hasn’t yet)

Question 16

Max posterior tooth arrangement for a lingualized occlusal relationship, balance or not:

Answer 16

buccal cusps of opposing teeth about 0.5 mm above antagonist when articulator is moved into working position

Question 17

Are cross-tooth contact of opposing working side posterior teeth indicated?

Answer 17

no

Question 18

Max posterior tooth arrangement for conventional occlusal relationship:

Answer 18

B and L cusps of opposing teeth in intermeshing design, minimal space bw opposing occlusal surfaces, anterior and bilateral cross-arch contact in all excursive movements, and cross-tooth contact on the working side

Question 19

Why not to align he buccal surfaces of the max and man teeth vertically?

Answer 19

may bite cheek

Question 20

Why is buccal overlap of the posterior teeth needed?

Answer 20

to prevent cheek biting

Question 21

Alignment of lingua cusps of max molars

Answer 21

CG and MR’s of opposing teeth

Question 22

When don’t you have cross-tooth contacts?

Answer 22

lingualized occlusal relationship

Question 23

This tooth might not be able to be placed directly into an ideal occlusal relationship

Answer 23

2nd molar, more important to be directly over the residual ridge

Question 24

When might you need to create a cross bite in fabricating dentures?

Answer 24

resorptive patterns of the opposing ridges (a lot of bone resorption)

Question 25

Resorption pattern of max and man after tooth extraction:

Answer 25

Man: down and out, Max, up and in

Question 26

Cross bite is aka this in dentures:

Answer 26

full or complete reverse articulation

Question 27

CG’s of all man posteriors should be within:

Answer 27

triangle: cusp tip of canine extended to the buccal and lingual aspect of the retromolar pad

Question 28

Which cusps are the functional cusps in cross bite?

Answer 28

max B cusps

Question 29

Partial reverse articulation:

Answer 29

cross bite in 2nd molar area and not the first premolar area, results in Man2P and Man1M being transition teeth

Question 30

nonbalanced occlusion should exhibit this:

Answer 30

bilateral simultaneous contact of the posterior teeth for one or more millimeters around the centric occlusion position

Question 31

Alignment of 3 most posterior denture teeth in partial cross bite:

Answer 31

Max2M: buccal cusp is functional, Max1M: B cusps in contact with B cusps of Man1M and Man2M

Question 32

Which will have more excursive posterior contacts distributed over a wider range of movements, balanced occlusion or non-balanced occlusion?

Answer 32

balanced occlusion or nonbalanced occlusion

Question 33

Posterior tooth contacts for nonbalanced occlusion excursive movements:

Answer 33

bilateral simultaneous contact of posteriors for one or more millimeters around centric occlusion position

Question 34

Which will exhibit more excursive posterior contacts distributed over a wider range of movements, balanced or non-balanced occlusion?

Answer 34

balanced

Question 35

Balanced occlusion contacts:

Answer 35

bilateral contacts of posterior teeth and simultaneous anterior contacts in all excursive movements

Question 36

For a balanced occlusion to have good “timing,”:

Answer 36

one or more posterior contacts, bilaterally, must be maintained through the entire excursive movement. Ex: incisal edges of the opposing central incisors in contact w multiple contacts posteriorly

Question 37

balanced occlusion, posterior contacts:

Answer 37

both bilateral contacts of the posterior teeth and simultaneous anterior contacts in all excursive movements.

Question 38

Working and nonworking contacts should exist until:

Answer 38

working side canines are cusp tip-to-cusp tip