quiz 3

Question 1

Occlusion and articulation in complete dentures

Answer 1

occlusion describes the contact in static relationship.

Articulation describes contact between teeth as they move.

Question 2

5 goals of complete denture occlusion

Answer 2

enhance stability, enhance mastication, esthetics & speech, preserve remaining structures, decrease lateral forces

Question 3

what kind of occlusion should be used for people with poor neuromuscular control?

Answer 3

monoplane

Question 4

when should adjustments with a bur be used?

Answer 4

contacts are in close to proper position. Minor reshaping will improve them

Question 5

when should you move the teeth in the wax?

Answer 5

it will take alot of time to correct position. Lots of adjustment is required. Tooth is rotated or tilted

Question 6

What are you goals for centric contacts?

Answer 6

even distribution of posterior teeth, no anterior contacts, 1-2 mm of buccal overjet, even weight darkness with articulating paper.( bulls eye)

Question 7

how should you remove articulating paper marks?

Answer 7

with dry gauze

Question 8

what should you adjust before adjusting the excursions?

Answer 8

centric stops

Question 9

adjusting eccentric cusps includes…..

Answer 9

even distribution of all teeth in excursions, Each mandibular posterior needs at least 1 balancing and working contact, balancing contacts should never be heavier than working contacts

Question 10

how to mark contacts

Answer 10

mark centric contact and excursive contacts with different colors, Mark both sides simultaneously

Question 11

should there be contacts on maxillary buccal cusps during excursions?

Answer 11

no

Question 12

IIF rule

Answer 12

balancing contacts will be on the inner inclines of functional cusps

Question 13

which arch should be reshaped first?

Answer 13

mandibular

Question 14

4 steps of occlusal adjustment

Answer 14

1. restore Vertical dimention
2. refine centric occlusion
3. perfect working and balancing occlusion
4. correct protrusive occlusion

Question 15

Red paper, blue paper

Answer 15

red is for centric occlusion, blue eccentric movements

Question 16

how do you restore vertical dimension?

Answer 16

grind the central fossa. Dont grind the cusps.( only grind cusp if it is high in every excursion)

Question 17

when do you deepen the fossa?

Answer 17

if the cusp is high in centric occlusion

Question 18

when do you reduce the cusp?

Answer 18

if the cusp is high in both centric and eccentric positions

Question 19

the rule of selective grinding states….

Answer 19

centric holding cusps are not ground. These are maxillary lingual and mandibular buccal cusps. These are essential in recording the VDO

Question 20

which cusps should be reduced then?

Answer 20

BULL , buccal upper , lingual lower (noncentric cusps)

Question 21

which inclines are reduced if reducing the cusps

Answer 21

lingual inclines of upper buccal, buccal inclines of lower lingal cusps.

Question 22

if adjustment is needed on anterior teeth where can you do it?

Answer 22

labial surface of lower anterior teeth, palatal surface of upper anteriors

Question 23

what is carborundum paste milling?

Answer 23

smoothens the various gliding surfaces of the teeth. Its put on the teeth and the articulator is moved in all excursive movements.

Question 24

midline should be centered to what?

Answer 24

philtrum

Question 25

during sibilant sound production how many mm are between maxillary and mandibular first premolars?

Answer 25

1-2 mm

Question 26

where should the mandibular anterior teeth be set?

Answer 26

slightly anterior to ridge

Question 27

horizontal overlap of posterior teeth should be what?

Answer 27

1.5 mm to avoid cheek biting

Question 28

where is the buccal corridor?

Answer 28

space between buccal surfaces of posterior teeth and cheeks

Question 29

maxillary posterior extension

Answer 29

using a transfer applicator mark each pterygomaxillary notch and vibrating line. Put trial denture in and make sure it ends on the line and in the pterygomaxillary notches

Question 30

how to test phonetics

Answer 30

engage in a conversation with them and observe them.

Question 31

difficulty producing the F and V sounds

Answer 31

maxillary anterior teeth too far lingually, or occlusal plane to high

Question 32

Difficulty with S sounds

Answer 32

excessive thickness lingual to maxillary central incisors

Question 33

S sound sounding like Sh

Answer 33

too broad of a channel lingual to maxillary central incisors preventing contact between the tongue and denture base

Question 34

difficult with Th sounds

Answer 34

too much horizontal overlap or a deep channel between the tongue and denture base area lingual to the upper incisors

Question 35

are wax try ins perfect?

Answer 35

no they almost always need to be modified

Question 36

interocclusal distance should be what?

Answer 36

2-4mm

Question 37

Changing OVD effects what 2 things

Answer 37

occlusion, facial esthetics

Question 38

how to check centric relation record

Answer 38

aluwax method, alternate technique

Question 39

what is the alternate technique?

Answer 39

The use of impresion material get a new centric record. When placed on the articulator the condylar ball should contact the fossae wall. This tells you if you need to remount the cast.

Question 40

which tooth is the most critical tooth relationship?

Answer 40

canine, if half tooth offset not present, diastema required between anterior and posterior teeth

Question 41

whats important to check when looking for esthetics while in the mouth?

Answer 41

soft tissue profile, lip support, display of vermilion border, correct nasolabial angle

Question 42

what causes lisping

Answer 42

non-uniform overjet of anterior teeth, diastemas between teeth, palatal contours, diamond shaped openings between teeth

Question 43

denture base contours

Answer 43

should not be slightly convex in shape, this affects phonetics

Question 44

what is the distance between lip closer and teeth touching that you need for correct VDO?

Answer 44

2-3mm