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Tim's Cards > Occlusion Quiz 2 > Flashcards

Occlusion Quiz 2 Flashcards

1
Q

Name 4 Features of the non-adjustable Articulator

A
  1. inexpensive
  2. the plastic types of these are Disposable
  3. a SMALL Amount of time is required to mount the casts on this articulator
  4. it is used primarily for Single Restorations, provided that the Anterior Guidance is available
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2
Q

In a laterotrusive movement, the Angle at which the non-working condyle moves Medially as measured in the horizontal plane, is called?

A

Bennett Angle

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3
Q

T/F

The facebow transfer apparatus is used to orient and mount the MAXILLARY cast on the articulator relative to the joints.

A

True

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4
Q

T/F
The facebow transfer apparatus utilizes three distinct reference points (two that are located in the posterior region at the condyles, and one located in the anterior region).

A

True

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5
Q

What is the disadvantage in using a fully adjustable articulator

A

Cost

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6
Q

What is the occlusal pathway on the mesiolingual cusp of a maxillary first molar that is exhibited as travelling from the central groove on the mandibular first molar, out the lingual groove toward the tongue?

A

Laterotrusive

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7
Q

Occlusal Prematurities are recorded and recogonized as _____ contact before the patient closes all the way to _______.

A

High

Maximum Intercuspation

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8
Q

A good example of Occlusal Prematurity is…

A

1st tooth contact in Centric Relation

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9
Q

What 2 things does Occlusal Prematurity imply?

A

Contact on Incline

Contact in area NOT considered Stable (for teeth and/or condyles)

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10
Q

How many proper Maximum Intercuspation contacts are seen in Occlusal Prematurity?

A

None

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11
Q

In what 2 directions can the mandible be displaced in Occlusal Prematurities?

A

Anteriorly

and/or

Laterally

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12
Q

T/F
First tooth contact in maximum intercuspation is a good example of an occlusal prematurity
All of these contacts are proper maximum intercuspation occlusal contacts

A

False

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13
Q

Forward displacement of the mandible is typically caused by occlusal or incisal contact occurring on _______ teeth causing the mandible to be ________ displaced.

A

Posterior

Anteriorly

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14
Q

Possible occlusal contact areas which cause lateral displacement of the mandible, exhibited as the Lingual Inclines of Maxillary Facial cusps touching the facial inclines of mandibular facial cusps, are called

A

“A” contacts

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15
Q

T/F
Non-working Interferences occur on facial inclines of the maxillary posterior lingual cusps AND are parallel to the distal oblique groove on maxillary first molars

A

True

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16
Q

T/F
Non-working Interferences occur on facial inclines of the mandibular posterior lingual cusps
Are parallel to the mesiofacial developmental groove on mandibular first molars
Never cause lateral displacement of the mandible

A

False

  • Lingual Inclines
  • *Distofacial
  • **Cause lateral displacement
17
Q

What are the occlusal prematurities that are exhibited on the distal marginal ridges of the mandibular posterior teeth?

A

Protrusive Interferences

18
Q

What is the closure interference that involves Maxillary facial cusp to mandibular facial cusp contact, with deviation of the mandible to the Opposite side of the interference?

A

“A” contact

19
Q

The closure interference known as a “B” contact will display mandibular deviation…

A

To the Same Side as the interference

20
Q

T/F
Regarding initial temporomandibular joint dysfunction in a patient, the retrodiscal ligaments shorten and the articular disc morphology exhibits remains static.

A

False

  • Elongates
  • *Changes
21
Q

T/F

A slight abnormal translation also occurs between the condyle and the articular disc in TMJ anatomy

A

True

22
Q

T/F

The etiology of TMD (temporomandibular dysfunction) is complex and multifactorial

A

True

23
Q

Name 3 major factors included in the evolution of TMD

A 
Predisposing factors (increase risk)
Initiating factors (onset)
Perpetuating factors (interferes with healing or enhances progression)
24
Q

Name 5 major factors of TMD

A 
Occlusal
Trauma
Emotional Stress
Deep Pain
Parafunction
25
Q

T/F
TMD exhibits predisposing factors that are responsible for the onset of the disease
The initiating factors are responsible for increasing risk
The major factors causing temporomandibular dysfunction are only emotional stress and normal functional activities

A

False

26
Q

Name 5 mitigating factors exhibited in patients with extracapsular temporomandibular joint problems

*2 more?

A 
Anxiety
Fatigue
Stress
Overuse/Underuse of mandible
Bruxism

(also Poor Sleep and Altered Muscle Contraction)

27
Q

T/F

Adequate sleep and normal muscle contraction can lead to extracapsular TMJ problems

A

False

28
Q

A trigger point on the masseter muscle can exhibit or refer pain to which area in the head and neck?

A

Maxillary Posterior Teeth

29
Q

The trigger point on the lateral pterygoid can refer pain to what 2 areas?

A

Zygomatic arch and Temporomandibular Joint

30
Q

T/F

Extensive mandibular opening with a soft end feel is common in Intracapsular Temporomandibular Disease

A

False

*limited opening and Hard End feel

31
Q

Name 5 symptoms of Intracapsular Temporomandibular Disease

A 
Joint sounds
Limited opening with Hard End feel
Mandibular deviation
Pain during TMJ loading
Sudden change in occlusion
32
Q

What is the clinical range of motion condition that is representative of an extracapsular problem in the temporomandibular joint?

A

Soft End Feel in mandibular opening movement

33
Q

T/F

Occlusal prematurities directly cause bruxing events

A

False

34
Q

Name 6 Parafunctional Activities and Features.

A 
Clenching
Bruxism (tooth grinding)
Most Subconscious 
Don't Directly cause bruxing
Directly related to Emotional Stress
Drugs increase bruxing

(serotonin re-uptake inhibitors and other antidepressants)

Tim's Cards (140 decks)

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