Occlusion Final Flashcards Preview

Tim's Cards > Occlusion Final > Flashcards

Flashcards in Occlusion Final Deck (59):
1

The position of the temporomandibular ligament is designed to limit what type of movement in the mandible?

Pure Hinge Axis Rotational Movement

2

The full length of the temporomandibular ligament occurs at no more than ______ of opening

15-20 mm

3

After the temporomandibular ligament is at full length (15-20 mm), what occurs at that pivot point?

Translation

4

The anterior border of the articular disc is _____ than the posterior border

Thinner

5

Where does most of the mandibular movement occur?
(2 places)

Intermediate zone (thinnest)
Anterior region

6

What is an incorrect statement about the retrodiscal tissues of the temporomandibular joint?

They are inelastic

7

T/F
The retrodiscal tissues of the TMJ are highly innervated and vascular

True

8

T/F
The retrodiscal tissues of the TMJ can be painful when subjected to force or "loading"

True

9

T/F
Any type of trauma can cause inflammation surrounding the articular disc of the TMJ

True

10

Regarding maximum intercuspation, what has an important relationship in Class 1 Occlusion?

1st Molars and Canines

11

T/F
For maximum intercuspation:
There must be adequate overlap of the Max and Mand teeth.
Occlusal forces should be exerted down the long axis of posterior teeth.
There should be multiple occlusal contacts on all teeth that adequately distribute forces.

True

12

T/F
For Maximum intercuspation, there must be simultaneous contact of only the posterior teeth (not the anterior teeth)

False

13

T/F
For Maximum intercuspation, anterior tooth occlusal contacts should dominate over the posterior teeth

False

14

T/F
For Maximum intercuspation, posterior teeth display "passive" occlusal contact (minimal contact)

False

15

What is the muscle of mastication that retracts or retrudes the mandible and positions the mandible to obtain centric relation?

Temporalis

16

The Medial Pterygoid is the primary muscle to produce what movement?

Mediotrusive

17

What is the muscle of mastication that is progressively active during closing movement of the mandible and frequently displays a spasm as a result of some types of occlusal dysfunction?

Superior Head Lateral Pterygoid

18

During normal closure of the mandible against the maxilla, the posterior fibers of the temporalis muscle will contract.

Incorrect

19

During normal closure of the Mand against Max:
Condyle will be primarily within Glenoid Fossa
Medial Pterygoid will contract
Masseter contracts
Suprahyoids, Infrahyoids relax
Posterior neck muscles minimally contract to hold Cranium in place

Correct

20

Functional Activity influences the Arch Alignment of the teeth.

Incorrect

21

The following influence the Arch Alignment of the teeth:
Max/Mand arch size
Occlusal contact relationship
Musculature w/ facial-lingual effects
Missing teeth
Fractured cusps
Carious teeth
Rotated/ectopical teeth

Correct

22

The permanent Maxillary 2nd Molar will articulate with what teeth?

Mand 2nd and 3rd Molars

23

What is an example of an ideal force application on teeth?

Occlusal forces on Posterior teeth occur long axes to the roots

24

In the cusp-fossa relationship of posterior teeth, the preferred name for contact between the Maxillary Lingual cusps and Mandibular Facial cusps is:

Centric

25

When attempting to describe ideal tooth positions in stationary occlusion, the Centric Relation and Maximum Intercuspation positions do not have to be coincident.

Incorrect

26

Stationary Occlusion:
Precise Max/Mand
Precise, Minimal, Short Lasting
Arches receive contact then release with movement
Contacts anatomically driven

Correct

27

Where will the mesiolingual cusp of the Mand 2M be in relation to the Maxilla?

Lingual embrasure between Max 1 and 2M

28

When a patient is in the intercuspal position, the distofacial cusp of the Max 1M is located...

In the distofacial groove of the Mand 1M

29

During a right sided lateral movement of the mandible, the distolingual cusp of the Mand 1st Left Molar from where to where?

Lingual sulcus of Max 1M
Diagonally to
Anterior portion of palate

30

When viewing a moving occlusion diagram with the base of the bold black arrow in the central fossa of the Mand Left 1M and the arrow is pointing through the lingual groove toward the tongue, this is designating...

Laterotrusive movement

31

When viewing a moving occlusion diagram:
Base bold black arrow at Central Fossa of Mand Left 1M, arrow pointing toward facial surface,
what movement is designated?

non-functional

32

When viewing a saggital pantographic tracing of the Mand border movements at the level of the Mand CI's, the position that is most anterior is:

Maximum Protrusion

33

When viewing a Frontal Pantographic tracing of Mandibular border movements at the level of the Mand CI's, the most superior position is:

Maximum Intercuspation

34

When viewing a saggital pantographic tracing of Mandibular border movements at the level of the Left Condyle, the movement or position that is the most superior is:

Working Movement

35

If a clinician wants to increase the horizontal overlap on Anterior Teeth but keep vertical overlap unchanged...
(2 correct, 2 incorrect statements)

Correct:
Posterior Cusps flatter
Anterior Guidance angle Decrease

Incorrect:
Posterior Cusps taller
Incisal edges Max/Mand in close contact

36

When the posterior and anterior controlling factors are not identical, the mandibular teeth most affected by the condyle is the...

3rd Molar

37

If a patient has a flatter plane of occlusion, the curve of Spee radius will be:

Longer

38

Immediate Sideshift is when initial Mand lateral translation movement occurs _____ the condyle translates from the fossa.

The greater the Immediate Sideshift, the ____ the posterior cusps must be and the ______ the opposing fossae and grooves.

Before

Shorter
Wider

39

For the horizontal determinants of occlusion, the ______ the distance of the tooth from the axis of rotation (condyle), and the ________ the angle formed by laterotrusive and mediotrusive pathways.

Greater

Wider

40

When evaluating the horizontal determinants of occlusal morphology, the greater the distance from the rotating condyle, the...

Wider the angle between Laterotrusive and Mediotrusive pathways

41

What are the advantages/disadvantages to using a Semiadjustable Articulator?
2 correct statements

Replicates Specific condylar movement
Excellent for Routine dental treatment

42

What are the advantages/disadvantages to using a Semiadjustable Articulator?
2 Incorrect statements

Less time trasferring info from pt. to articulator than nonadjustable one

Less expensive than nonadjustable

43

The arbitrary mounting of Maxillary and Mandibular casts is part of a Fully Adjustable articulator

Incorrect

44

Fully adjustable articulator:
Exact Hinge Axis location of condyles for facebow
Pantographic recording
Centric relation Occlusal record

Correct

45

Incorrect statement of Working Side Occlusal Prematurity:

Facial inclines of the Max posterior lingual cusps

46

Working side occlusal prematuraties:
lingual inclines Max Post facial cusps
facial inclines Mand Post facial cusps
lingual inclines Max Post lingual cusps
facial inclines Mand post lingual cusps

Correct

47

If a patient has a premature occlusal contact on the lingual inclines of the Mand Post facial cusps, these would be known as...

Non-working interference

48

If a patient has a premature contact, or closure interference, that involves direct contact with the triangular ridge of the mesiofacial cusp on a Max 1M and the facial ridge of the mesiofacial cusp of the Mand 1M, the clinical condition would see:

Mand deviating opposite side of premature contact

49

What does Myofacial Pain Syndrome not entail?

Pain abnormalities only systemic in origin

(this is an incorrect statement)

50

Myofacial pain syndrome entails:
pain of regional nature originating at trigger point within muscle, facia
pain that refers to other areas
autonomic abnormalities (blanching, cold, sweat, erythema, hyperesthesia, hyperalgesia)

Correct

51

2 Incorrect statements concerning stages of muscle disorders and how trismus displays various clinical attributes:

Pain is never variable
Process is irreversible

52

Trismus:
Incisal-interocclusal distance less than 18mm
Presence of Hard end feel
Secondary to infection, hematoma, and trauma

Correct

53

A trigger point on the anterior temporalis will refer pain to...

Maxillary Incisors

54

The internal derangement of the articular disc making opening and closing clicks is called...

Disc displacement with Reciprocal Click

55

An INcorrect statement regarding intracapsular disorders:

Having a patient protrude their mandible against resistance as they bite will increase pain

56

Intracapsular Disorders:
Interarticular pressure and Mand movement elicit pain
Increase TMJ pressure elicits pain
If biting tongue blade painful = Inferior Lat. Pterygoid
Biting opposide side affected joint increases pain

Correct

57

Pain Conditions that might be confused with Temporomandibular Disease
(2 correct)

Necrotic pulp pain with limited mouth opening

Cervical spine pain produces reflex muscle response in trigeminal area - muscles of mastication

58

T/F
Temporomandibular Disease:
Biting on opposite side of affected joint will increase pain.
Has increased interarticular pressure and Mandibular movement

False

59

The proper clinical method to resolve a spontaneous dislocation or subluxation is...

Manipulation of mandible by clinician

Decks in Tim's Cards Class (140):