quiz 2.1

Question 1

What are the advantages of using Nonadjustable articulators?

Answer 1

• Disposable

- mounting procedures are ARBITUARY (small amount of time required to mount)

Question 2

In a Laterotrusive movement, the angle which the ____-______ condyle moves _______ (as measured in the horizontal plant)

Answer 2

non-working, medially

Question 3

Three concepts of the face-bow transfer

Answer 3

• Used the ORIENT and mount the MAXILLARY casts on the articulator relative to the joints
• Uses three distinct reference points (TWO posterior and ONE anterior
• Transfers the intercondylar distance of the patients to the articulator

Question 4

describe where the two posterior and one anterior reference points are located on the face bow transfer

Answer 4

Posterior: Hinge axis of each CONDYLE
ANTERIOR: ARBITRARY, established by the manufacturer

Question 5

Advantages and disadvantages of the fully adjustable articulator

Answer 5

• Articulator WILL duplicate patient’s mandibular movement
• When used properly restoration will PRECISELY fit the patient’s occlusal requirements (FEWER intraoral adjustments)
• EXPENSIVE (most important point), more sophisticated articulator + PANTOGRAPH)

Question 6

the Mesio-lingual cusp of the maxillary first molar will shift the mandible to what direction?

Answer 6

laterotrusive or working pathway

Question 7

What are the 5 points of the nature of the occlusal prematurities

Answer 7

1) These are recorded and recognized as a “HIGH” contact before the patient closses all the way into MAXIMUM INTERCUSPATION
2) First tooth contact in centric relation is a good example of an OCCLUSAL PREMATURITY
3) The term prematurity implies that the contact is either on an incline, or is in an area that in NOT CONSIDERED STABLE (for the teeth or the condyles
4) NONE of these contacts are proper maximum
5) The MANDIBLE can be DISPLACED anteriorly and or laterally

Question 8

Contacts occurs on _______ teeth causeing the mandible to be _________ displaced

Answer 8

posterior, anteriorly

Question 9

Describe an “A” contact

Answer 9

lingual inclines of maxillary facial cusps contactin facial inclines of mandibular facial cusps

Question 10

Describe “B”contact

Answer 10

facial inclines of maxillary lingual cusps contactin lingual inclines of mandibular facial cusps

Question 11

Describe “C” contact

Answer 11

lingual inclines of maxillary lingual cusps contactin facial inclines of mandibular lingual cusps

Question 12

In non-woking interferences, where are the interfernces normally found (3)

Answer 12

• LINGUAL inclines of the mandibular POSTERIOR FACIAL cusps
• FACIAL inclines of the MAXILLARY POSTERIOR lingual cusps
• Parallel to the DISTAL OBLIQUE GROOVE, max 1st molar

Question 13

_________ interferences usually cause ________ displacement of the mandible

Answer 13

non-working, lateral

Question 14

Protrusive interferences

Answer 14

• DISTAL marginal ridges of the mandibualr posterior teeth

- MESIAL MARGINAL ridges of the MAXILLARY POSTERIOR TEETH

Question 15

“A” contact will display mandibular deviation to the ______ side

Answer 15

OPPOSITE

Question 16

“B” contacts will display mandibular deviation to the ______ ______ as the interference

Answer 16

Same Side

Question 17

Initial TMJ dysfunction

Answer 17

• Retrodiscal Ligaments ELONGATE

- DISC MORPHOLOGY CHANGES

Question 18

The etiology of temporomandibular dysfuction is ________ and ________

Answer 18

complex, multifactorial

Question 19

What is the Etiology of TMD

Answer 19

• Predisposing factors: These WILL INCREASE risk
• INITIATING factors: these are responsible for the ONSET of the disease
• PERPETUATING factor: these will interfere with HEALING or ENHANCE progression of the disease

Question 20

What are the 5 major factors of TMD

Answer 20

Occlusal
Trauma
Emotional stress
Deep pain
Parafunction

Question 21

Mitigating factors of TMJ problems (7)

Answer 21

Anxiety
fatigue
stress
overuse/inderuse of jaw
poor sleep
bruxism
altered muscle contraction

Question 22

Review Slide…

Answer 22

17

Question 23

Lateral pterygoid disfunction usually refers pain to where?

Answer 23

Zygomatic Arch

TMJ

Question 24

What are the symptoms of intracapsular TMD (4)

Answer 24

Joint sounds
   clicks and or popping
   crepitus (grinding noises)
Limited opening with hard end feel
   deviation of deflection of mandible
Pain during loading of the TMJ
Sudden change in a patient's occlusion

Question 25

what joint sounds are found in intracapsular TMD

Answer 25

clicks and/or popping

Crepitus (grinding noises)

Question 26

What occurs when there is a limited opening with a hard end feel?

Answer 26

Deviation or deflation of mandible

Question 27

What does ROM stand for?

Answer 27

RANGE OF MOTION

Question 28

What does TMD stand for?

Answer 28

temporomandibular dysfunction

Question 29

when opening the mandible, what would indicate a muscle problem

Answer 29

A soft end feel

Question 30

The ROM _______ ____ may be increased slowly, because it may be painful and MUST be DONE with _____ by the clinicial

Answer 30

Maximum opening, Care

Question 31

T or F If there is a HARD end feel the ROM can still be slowly and steadily increased

Answer 31

FALSE the ROM may not be increased due to the articular disc derangement

Question 32

where do most parafunctional activities occur?

Answer 32

At a subconscious level, Clinicians must make the patient AWARE of this

Question 33

T or F occlusal prematurities do not directly cause bruxing events?

Answer 33

TRUE

Question 34

_______ _______ directly relates to the __________

Answer 34

Emotional stress, parafunction

Question 35

what type of medication are most likely to cause an increase in bruxing?

Answer 35

Antidepressents