Brainscape's Knowledge GenomeTM

Browse over 1 million classes created by top students, professors, publishers, and experts.


See full index

Occlusion > Optimal Functional Occlusion > Flashcards

Optimal Functional Occlusion Flashcards

1
Q

The dynamic relationship of the lower anterior teeth against the upper anterior teeth through all ranges of function

A

Anterior guidance

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
2
Q

What teeth should be the only teeth touching ideally in lateral trusive movement?

A

Canines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
3
Q

Canines contacting during lateral trusion creates a Class _____ lever

A

Class III lever

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
4
Q

How much shorter should lateral incisors be than central incisors?

A

.5-.75 mm

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
5
Q

What are the functions of anterior teeth?

A

Incise, hold, tear, or puncture

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
6
Q

What are the function of posterior teeth?

A

Chop, grind, mash, or mince

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
7
Q

Function of ____ teeth: Protect the posterior teeth•Aid in guidance of the mandible•Esthetic representatives•Aid in speech•Incise food

A

Anterior teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
8
Q

According to Monson, condyles are a ____ not a _____ of mandibular movement

A

result not a guide

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
9
Q

What are the guiding elements of mandibular movement?

A

Cusps of teeth

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
10
Q

Without posterior support, the anterior teeth can ____ and become ______

A

flare and become mobile

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
11
Q

In _____ occlusion: Posterior contacts in centric•Posterior working contacts in lateral•Posterior balancing contacts in lateral•Posterior contacts in protrusive

A

Balanced

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
12
Q

____ occlusion is not acceptable for dentate pts •not ideal for dentate pts •promotes tooth wear on dentate pts

A

Balanced occlusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
13
Q

_____ side contacts are extremely destructive and must be avoided

A

non-working side

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
14
Q

______ occlusion is an acceptable form of occlusion for complete dentures but not for dentate patients

A

Balanced

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
15
Q

_____ occlusion favors wear of the teeth and favors horizontal chewing

A

Balanced occlusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
16
Q

______ occlusion: Several teeth on the working side contact during eccentric movements•Most favorable alternative to canine guidance

A

Group function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
17
Q

_____ contacts in group function•Either canine guidance or group function•Needs to provide adequate guidance to discludethe teeth on the opposite side of the arch

A

Laterotrusive Contacts (Working)

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
18
Q

_____ occlusion: Posterior contacts in centric (maximum intercuspation)•Posterior working contacts in lateral •No posterior balancing contacts in lateral•No posterior contacts in protrusive anterior disclusion

A

Group function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
19
Q

____ occlusion is acceptable but not ideal

A

Group function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
20
Q

_____ occlusion is the only option for patients who:•have no anterior vertical overlap e.g. anterior open bite, •a very large anterior horizontal overlap e.g. Class II DivI •have a reverse overlap e.g. Class III

A

Group function

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
21
Q

____ occlusion is ideal

A

Mutually protected/Cuspid protected

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
22
Q

Physiologic position•A stable musculoskeletal position•Determined by joint anatomy•Determined by muscle forces

A

Centric Relation•

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
23
Q

In ______ occlusion: Posterior contacts in centric•Cuspid contact only on working side in lateral•No posterior balancing contacts in lateral•No posterior contacts in protrusive anterior disclusion

A

Mutually protected occlusion

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
24
Q

What tooth has greater proprioceptive sensitivity

A

Canine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
25
Q

What tooth contacts prevent periodontal fatigue and restoration failure

A

Canine

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
26
Q

_____ are best suited to accept the horizontal forces that occur during eccentric movements

A

Canines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
27
Q

_____ Forces•Must be directed to the anterior teeth which are positioned farthest from the fulcrum and the force vectors

A

Horizontal

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
28
Q

Longest and largest roots and therefore the best crown/root ratio

A

Canines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
29
Q

•Fewer muscles are active when ____ contact during eccentric movements than when posterior teeth contact

A

Canines

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
30
Q

Each tooth should contact in such a manner that the forces of closure are directed through the _____ of the tooth.

A

long axis

How well did you know this?
1
Not at all
2
3
4
5
Perfectly
31
Q

Even and simultaneous contact of all possible teeth should occur when mandibular condyles are in their most ______ position resting on the posterior slopes of articular eminences with the disc properly interposed

A

superoanterior

32
Q

stable, orthopedic position is essential to treatment. •Muscles stabilize joints, therefore every mobile joint has a musculoskeletally stable position

A

Centric relation

33
Q

____ is achieved by cusp tip to flat surface and tripodization

A

Axial loading

34
Q

Elevator muscles pull the mandible in _____ position.

A

anteriosuperior

35
Q

If the mandible is not in CR, the _____ must keep some tension on the neck of the condyle to keep it slightly forward.

A

inferior lateral pterygoids

36
Q

In _____ occlusion•Good function•Shows the least wear to the teeth•Minimal periotrauma•Minimal TMJ trauma•Comfortable muscle activity

A

Ideal Occlusion

37
Q

Which tooth breaks muscle tension in masseter and temporalis?

A

Canine

38
Q

We need enough ______ so when the patient goes into a lateral or protrusive movement, the posterior teeth will disclude or separate.

A

vertical overlap

39
Q

How much clearance should there be at molars in protrusive?

A

1 mm

40
Q

Who started the study of occlusion to make dentures that worked well; developed articulators?

A

Greene brothers

41
Q

2 main school of occlusion that are relatively close in theory and philosophy; widely divergent in technique

A

Pankey-Mann-Schuyler and Gnathology

42
Q

What type of occlusion do gnathologists use?

A

Cuspid protected

43
Q

What type of occlusion do Pankey-Mann-Schuyler use?

A

Group function

44
Q

____ concept:
Incisal guidance has “the most profound” influence on the occlusion of the posterior teeth
•The incisal guidance in the normal occlusion is the lingual contours of the upper anterior teeth
•By its proximity to the posterior teeth, it has a predominating influence upon posterior tooth function
Harmony of contact on all working inclines
•Unilateral balance
•Cusp to fossa relationship
•Single point contact

A

Pankey-Mann-Schuyler

45
Q 
\_\_\_\_ original concept: 
Frequently showed excessive wear
•Led to occlusal instability
•Provided poor usage of the teeth
•McCollum died believing the original concept was correct
A

Gnathology

46
Q 
\_\_\_\_ concept: 
•The canine teeth should serve to guide the mandible during eccentric movements
•Determines both lateral and protrusive movements of the mandible
It is the science and study of:
•Mandibular movement
•Jaw relationships
•Tooth morphology
•Functional requirements
A

Gnathology

47
Q

Baseline for evaluating patients’ occlusion include what 3 things?

A

•Teeth•TMJ•Musculature

48
Q

T/F: A patient may have an orthodonticallyideal Angles Class I occlusion, this does not mean that the patient has optimal occlusal contacts, optimal condyle/mandibular position, and ideal/optimal contacts in excursive movements.

A

True

49
Q

T/F: Patients may have a less than ideal occlusion, HOWEVER, it may still be a functionally acceptable occlusion or a physiologically acceptable occlusion

A

True

50
Q

The TM Joints are in an optimum, orthopedically stable joint position when the mandible is in _____

A

CENTRIC RELATION

51
Q

refers only to the joints and does not involve teeth•mandible can freely arc up and down along the Terminal hinge axis •Teeth cannot contact = deflection

A

CENTRIC RELATION

52
Q

To determine if treatment is _____: (assess the masticatory system for evidence of pathology -tooth wear, tooth mobility, TMJ dysfunction, muscle dysfunction, etc)

A

required

53
Q

____ is a repeatable position where the muscles are relaxed

A

Centric relation

54
Q

What are the 2 main muscles that stabilize the TMJ?

A

Masseter and medial pterygoid

55
Q

Which muscles are the most relaxed in CR?

A

Lateral pterygoids

56
Q

In CR, condyles are is most ____ position of glenoid fossa

A

Superior-anterior

57
Q

Condyles rest against ____ slope of articular eminence which can tolerate higher stresses in CR

A

Posterior slope

58
Q

In the most retruded position the posterior wall of the articular fossa is very ______

A

thin

59
Q

Is CR a jaw or teeth position?

A

Jaw

60
Q

______ is the position to which we restore:•completely edentulous patients•partially edentulous patients, when there are so few teeth remaining that there is not a stable MIP•dentate patients who are going to receive extensive restorations which will alter their occlusion entirely

A

Centric relation

61
Q

____ works to eliminate the habitual closing patterns of the patient

A

Leaf gauge key

62
Q

How hard should the patient bite on the leaf gauge?

A

Half-hard pressure

63
Q

With the centric relation interocclusal record between the teeth, the patient should be aware of no _____ whatsoever. There should be a feeling of equal pressure throughout the contact.

A

strain

64
Q

The ____ relates the maxillary cast to the axis of rotation; accurate and convenient method to get the maxillary cast into the articulator

A

Facebow

65
Q

All posterior teeth should ______ . This distributes the stress over all the teeth and does not concentrate it on one tooth causing harm.

A

contact evenly

66
Q

Should contacts in CR be unilateral or bilateral?

A

Bilateral

67
Q

All the contacts occur ______ on both sides of the arch and on all the posterior teeth

A

at the same time

68
Q

The posterior teeth should be ______ i.e. through the long axis of the tooth. Lateral forces on teeth are not well accepted.

A

axially loaded

69
Q

Are anterior teeth axially loaded?

A

No

70
Q

______: also called canine disclusion or canine rise. When the mandible moves laterally, the canines on the working side guide the movement, causing all other teeth to disclude.

A

Canine guidance:

71
Q

Anterior Guidance: in Protrusive Movement, the anterior teeth should _____ the posterior teeth

A

disclude

72
Q

Contacts between the posterior teeth during excursive movements are considered ______ and can create damaging effects on teeth and periodontium.

A

interferences

73
Q

What class of levers are created when interferences occur?

A

Class 1 and 2

74
Q

The more _____ the resistance (load) occurs, the lesser the impact (magnitude)

A

anterior (away from the fulcrum),

75
Q

The _____ has the longest root, and best bone support (canine eminence)

A

canine(s

76
Q

_____ occlusion: Multiple, even, bilateral, simultaneous occlusal contacts of the posterior teeth in MIP with the mandible is CR position i.e. MIP and CR are coincident. •The anterior teeth exhibit lighter occlusal contacts as compared to posterior teeth in MIP•Posterior teeth are axially loaded in MIP •In excursive movements canine guidance/anterior guidance occurs

A

Mutually protected occlusion

77
Q

The posterior teeth withstand the majority of the load in MIP, protecting the anterior teeth from high loads. •The anterior teeth disclude the posterior teeth in excursive movements, thereby protecting the posterior teeth from off-axis loading.•Posterior teeth can tolerate axial loading well so they protect anterior teeth, which are not axially loaded, in MIP. Anterior teeth can tolerate lateral forces in excursive movements (off-axial loading) since they are further away from the fulcrum and the loads are less.

A

Mutually protected occlusion

Occlusion (13 decks)

Brainscape helps you reach your goals faster, through stronger study habits.
© 2024 Bold Learning Solutions. Terms and Conditions