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Flashcards in quiz 3 Deck (44):
1

Occlusion and articulation in complete dentures

occlusion describes the contact in static relationship.
Articulation describes contact between teeth as they move.

2

5 goals of complete denture occlusion

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

3

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

monoplane

4

when should adjustments with a bur be used?

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

5

when should you move the teeth in the wax?

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

6

What are you goals for centric contacts?

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

7

how should you remove articulating paper marks?

with dry gauze

8

what should you adjust before adjusting the excursions?

centric stops

9

adjusting eccentric cusps includes.....

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

10

how to mark contacts

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

11

should there be contacts on maxillary buccal cusps during excursions?

no

12

IIF rule

balancing contacts will be on the inner inclines of functional cusps

13

which arch should be reshaped first?

mandibular

14

4 steps of occlusal adjustment

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

15

Red paper, blue paper

red is for centric occlusion, blue eccentric movements

16

how do you restore vertical dimension?

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

17

when do you deepen the fossa?

if the cusp is high in centric occlusion

18

when do you reduce the cusp?

if the cusp is high in both centric and eccentric positions

19

the rule of selective grinding states....

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

20

which cusps should be reduced then?

BULL , buccal upper , lingual lower (noncentric cusps)

21

which inclines are reduced if reducing the cusps

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

22

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

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

23

what is carborundum paste milling?

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

24

midline should be centered to what?

philtrum

25

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

1-2 mm

26

where should the mandibular anterior teeth be set?

slightly anterior to ridge

27

horizontal overlap of posterior teeth should be what?

1.5 mm to avoid cheek biting

28

where is the buccal corridor?

space between buccal surfaces of posterior teeth and cheeks

29

maxillary posterior extension

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

30

how to test phonetics

engage in a conversation with them and observe them.

31

difficulty producing the F and V sounds

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

32

Difficulty with S sounds

excessive thickness lingual to maxillary central incisors

33

S sound sounding like Sh

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

34

difficult with Th sounds

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

35

are wax try ins perfect?

no they almost always need to be modified

36

interocclusal distance should be what?

2-4mm

37

Changing OVD effects what 2 things

occlusion, facial esthetics

38

how to check centric relation record

aluwax method, alternate technique

39

what is the alternate technique?

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.

40

which tooth is the most critical tooth relationship?

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

41

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

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

42

what causes lisping

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

43

denture base contours

should not be slightly convex in shape, this affects phonetics

44

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

2-3mm