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OCCLUSION > Quiz 1-Ideal Occlusion (TMJ) & M of M's > Flashcards

Quiz 1-Ideal Occlusion (TMJ) & M of M's Flashcards

1
Q

BIG TERM! What term describes the ENTIRE cranial-mandibular complex that emcompases the articulation of the teeth and the surrounding structures that produce and limit movement?

A

CRANIO-MANDIBULAR Apparatus

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2
Q

The Temporal Bone forms the _______ aka the ______ fossa. The shape of this fossa determines the many ______ of mandibular movement.

A

Glenoid aka mandibular fossa…..limits

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3
Q

What is the portion of the mandible that articulates in the mandibular fossa?

A

the CONDYLE

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4
Q

The ______ of the heads of the condyle determine the limits of mandibular movement.

A

SHAPE

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5
Q

The mandible is the ONLY bone in the body that possesses two __________.

A

Axes of rotation!

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6
Q

Ligaments supporting the TMJ & Mandible _______ mandibular movement and __________ the musculature, especially during EXTREME movement.

A

LIMIT….PROTECT

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7
Q

What are the 3 NO’s! of the Ligaments that support the TMJ/Mandible???

A

1.NON-elastic 2.NON-contractile 3.Do NOT have innervation

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8
Q

The Stylo-Mandibular ligament limits excessive ________ movement of the mandible.

A

PROTRUSIVE

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9
Q

The Spheno-Mandibular ligament plays a role of limiting _________ movement AND ________ mandibular movement.

A

PROTRUSIVE and LATERAL (to either R or L side)

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10
Q

The position of the Tempromandibular Ligament is designed to limit the pure _____ axis _______ movement of the mandible.

A

HINGE….rotational

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11
Q

The full length of the tempromandibular ligament occurs at no more than ___-___mm of opening, as measured between the incisal edges of the _________.

A

15-20mm opening….Maxillary and Mandibular incisors (ANTERIOR teeth only!)

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12
Q

The TemproMandibular disc is also named the _______ disc.

A

Articular Disc

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13
Q

The Tempromandibular/Articular Disc: Consists of _______ connective tissue.

A

Fibrous (NOT HYALINE)

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14
Q

The Tempromandibular/Articular Disc: Interfaces between the _______ and the _______ bone.

A

Mandible and Temporal bone

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15
Q

The Tempromandibular/Articular Disc: Is somewhat _______ in texture.

A

Pliable (hard rubber)

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16
Q

The Tempromandibular/Articular Disc: It is _______ in shape.

A

Bi-Concave

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17
Q

The Tempromandibular/Articular Disc: ________ ligaments attach it to the condyle in a medial and lateral position.

A

Collateral Ligaments

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18
Q

The Tempromandibular/Articular Disc: Does not have any ________ nor _________.

A

innervation nor vascularization

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19
Q

Maximum Intercuspation: terminology describing ______ position.

A

TOOTH!

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20
Q

Maximum Intercuspation: Also known as _______ (__) which is now OBSOLETE. (wait so why are we learning it :)

A

Centric Occlusion (CO) colorado is obsolete!

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21
Q

Maximum Intercuspation: Is commonly referred to as _______ occlusion or _______ centric because the patient can achieve this position by “______”.

A

Habit…habit…habit

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22
Q

Maximum Intercuspation: describes an _______ relationship or tooth relation.

A

Occlusal

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23
Q

Maximum Intercuspation: the teeth are contacting in a position that the patient finds the most ________.

A

comfortable

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24
Q

Maximum Intercuspation: its always easily ________, but not always _________ by the patient.

A

easily achievable, not always reproducible

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25
Q

Clinical conditions re: the SLIDE from C.R. to M.I.— Only ___% of the population have no discrepancy/slide.

A

15%

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26
Q

Clinical conditions re: the SLIDE from C.R. to M.I.— for the ___% of patients with a SLIDE after the first occlusal contact in CentricRelation is obtained (this is usually 2 or more ______ teeth), the patient continues to close and slide on the inclines of ________ teeth.

A

85%…posterior…POSTERIOR

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27
Q

Clinical conditions re: the SLIDE from C.R. to M.I.— the maxillary and mandibular teeth will come together more completely in the ________ position.

A

Maximim Intercuspation

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28
Q

Clinical conditions re: the SLIDE from C.R. to M.I.— The condyles must move out of their most ideal position when the teeth come fully together and this position is ______, _______, and slightly _______ to the maximum intercuspation position.

A

anterior, superior, and slightly lateral

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29
Q

What are the two terms for describing LATERAL eccentric movements of the mandible?

A

1.Canine Protected Articulation 2.Group Function Occlusion

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30
Q

Terms for describing LATERAL eccentric movements of the mandible: Canine protected articulation implies that only the _______ are touching during the complete extent of ______ movement.

A

canines…..lateral

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31
Q

Terms for describing LATERAL eccentric movements of the mandible: Group function occlusion entails that one or more of the ______ teeth, in combination with ______ are in contact during complete extent of ______ movement.

A

posterior…anterior….lateral

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32
Q

Terms for describing LATERAL eccentric movements of the mandible: Which of the two terms is the IDEAL occlusial scheme?

A

Canine Protected Articulation

33
Q

Terms for describing LATERAL eccentric movements of the mandible: Which of the two terms is the secondary or more practical scheme?

A

Group function

34
Q

Terms for describing LATERAL eccentric movements of the mandible: _____ patients usually exhibit group fxn more then canine protected.

A

Older

35
Q

Summary of Ideal Occlusion: Centric relation and maximum inculpation occur _______.

A

simultaneously

36
Q

Summary of Ideal Occlusion: All teeth contact ________.

A

simultaneously

37
Q

Summary of Ideal Occlusion: All occlusal forces on posterior teeth are directed down the _____ of the teeth.

A

Long axis

38
Q

Summary of Ideal Occlusion: Posterior tooth contacts ______ over anterior tooth contacts.

A

DOMINATE (50 shades anyone?)

39
Q

Summary of Ideal Occlusion: All eccentric movements are guided by the _______ teeth.

A

ANTERIOR

40
Q

Summary of Ideal Occlusion: No crossover contacts on _______ teeth should be seen.

A

Posterior

41
Q

Correct alignment of the Articular Disc is slightly _______ and the thinnest, most articulated portion is in the ______ section.

A

slightly anterior….middle

42
Q

THE MASSETER: ________ the mandible in a superior direction to eventually contact the maxillary teeth, this is considered ______ function.

A

ELEVATE…normal

43
Q

THE MASSETER: causes ________ of the teeth, which is considered _______ function.

A

CLENCHING…PARAnormal function

44
Q

THE MASSETER: AIDS in ________ movement, but is not the primary muscle to produce _______ movement.

A

Protrusive…protrusive

45
Q

THE MASSETER: MINIMALLY aids in _______ movement, it is a very MINOR player to produce _______ movement.

A

lateral…lateral

46
Q

the MEDIAL pterygoid: _______ the mandible in a superior direction and eventually contact the maxillary teeth, considered ______ function.

A

ELEVATE…normal

47
Q

the MEDIAL pterygoid: AIDS in ______ movement, but it is NOT the primary muscle to produce ______ movement.

A

protrusive…protrusive

48
Q

the MEDIAL pterygoid: THE BIG ONE!! Produces ________ movement, and it is the PRIMARY muscle to perform this action!

A

MEDIOTRUSIVE

49
Q

the MEDIAL pterygoid: is a minor player in the paranormal function _______ of the teeth.

A

clenching

50
Q

What is the only Paranormal function of the Medial Pterygoid?

A

Clenching!

51
Q

THe LATeral PTERYgoid INFerior HEad::::: it is active during _______ movement of the mandible which is considered ______ function.

A

Opening…normal

52
Q

THe LATeral PTERYgoid INFerior HEad:::::it is the PRIMARY muscle involved in _______ movement which is a _______ function.

A

protrusive…normal

53
Q

THe LATeral PTERYgoid INFerior HEad::::: it is the PRIMARY muscle that produces _______ movements which is a normal function.

A

lateral!

54
Q

THe LATeral PTERYgoid INFerior HEad:::::it is the most frequent M of M to exhibit a _______ as a occlusial dysfunction (paranormal function).

A

SPASM

55
Q

Which M of M cannot be palpated by the clinician?

A

Inferior head of the lateral pterygoid

56
Q

Which M of M is the most frequent to spasm??

A

inferior head of the lateral pterygoid

57
Q

tha SUPRAhyoids!! _______ the hyoid bone.

A

elevate

58
Q

tha SUPRAhyoids!! ______ the base of the tongue.

A

elevate

59
Q

tha SUPRAhyoids!! _______ the mandible when the _____ bone is fixed.

A

depress the mandible when the hyoid bone is fixed

60
Q

tha SUPRAhyoids!! assist in stabilizing the _______ and the _______ during normal mandibular movements.

A

Cranium and mandible

61
Q

tha SUPRAhyoids!! important for control over the ______ and the _______ during swallowing an speaking activities.

A

pharynx and esophagus

62
Q

The EARLY phase of the normal jaw opening movement: the _____ head of the _____ pterygoid contracts, it is a controlled, ______, and consistent movement.

A

inferior head of the lateral pterygoid…slow

63
Q

The EARLY phase of the normal jaw opening movement: the condyle will move _______, actually down the slope of the _______ at the beginning of its posterior border.

A

anteriorly….articular eminence

64
Q

The EARLY phase of the normal jaw opening movement: the ______ will move with the condyle! Because of the the _____ head of the ______ pterygoid muscle ______ contracting.

A

articular disc…..superior head of the lateral pterygoid minimally contracting

65
Q

The EARLY phase of the normal jaw opening movement: the superior ________ tissues are slightly taut as a counterbalance between articular disc and s. lat. pterygoid.

A

retrodiscal

66
Q

Muscle VECTORS (whats our vector, Victor?) in a saggital plane: Anterior temporalis (2)

A

superior and slightly anterior

67
Q

Muscle VECTORS (whats our vector, Victor?) in a saggital plane: middle temporalis (2)

A

superior and slightly posterior

68
Q

Muscle VECTORS (whats our vector, Victor?) in a saggital plane: posterior temporalis (2)

A

posterior and slightly superior

69
Q

Muscle VECTORS (whats our vector, Victor?) in a saggital plane: masseter (2)

A

superior and slightly anterior

70
Q

Muscle VECTORS (whats our vector, Victor?) in a saggital plane: posterior digastric (2)

A

superior and posterior

71
Q

Muscle VECTORS (whats our vector, Victor?) in a saggital plane: inferior head of lateral pterygoid (1)

A

anterior

72
Q

What is ALWAYS the starting point for the 8 stage sequence of normal condyle-disc movement???

A

Centric Relation!!!

73
Q

Unilateral contraction of the medial pterygoid will produce ________ movement (movement of the mandible to the ______ side toward the midline)..ALSO some ______ will occur.

A

MedioTrusive movement…SAME side…protrusion

74
Q

The “______ region” is loose vascular tissue which is the posterior attachment for the articular disc and it also fills with _____.

A

“bilaminar region”…fluid

75
Q

The ______ area is the posterior part that splits between the inferior and superior retrodiscal ligaments, _______ to the articular disc.

A

Retrodiscal area…posterior

76
Q

_________ will exist only when the stable intercuspal position of teeth is in HARMONY with the musculoskeletal stable position of the condyles in fossa.

A

Orthopedic Stability

77
Q

Orthopedic stability is needed to minimize ________.

A

muscle dysfunction!!!

78
Q

Orthopedic stability: with the teeth apart the ______ muscles attempt to maintain the condyles in their musculoskeletally stable positions.

A

elevator

79
Q

Orthopedic stability: when the teeth come together and there is a ________ contact, occlusal and joint instability will result.

A

single tooth

OCCLUSION (4 decks)

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