TMJ/Occlusion Flashcards Preview

NBDE Part 1 COPY > TMJ/Occlusion > Flashcards

Flashcards in TMJ/Occlusion Deck (23)
Loading flashcards...
1
Q

What type of CT covers the condyle?

A

Dense avascular fibrous connective tissue

Not hyaline cartilage

2
Q

T/F: The articular eminence is the thickest part of the temporal bone.

A

True

3
Q

Which imaging technique will capture the disc?

A

MRI

4
Q

Which ligament attaches the disc to the condyle by attaching to the medial and lateral poles?

A

Collateral ligament

5
Q

Which ligament covers and protects the TMJ while not allowing it to move laterally?

A

Capsular ligament

6
Q

Which ligament attaches the from the eminence to the posterior neck of the condyle?

A

TM ligament

7
Q

Which ligament initiates translation of the mandible and stops the condyle from going to far posteriorly?

A

TM ligament

8
Q

Which ligament attaches to the medial side of the ramus (lingula)?

A

Shenomandibular ligament

Limit excess opening

9
Q

Which ligament limits excessive protrusion?

A

Sylomandibular

Attaches to posterior of mandible

10
Q

Which three muscles are the primary elevators of the mandible?

A

Masseter, temporalis, medial pterygoid

11
Q

Where does the medial pterygoid muscle originate and insert?

A

Origin: Medial of lat pterygoid plate
Insert: medial angle of mandible

12
Q

Where does the lateral pterygoid originate and insert?

A

Origin: Lateral of pterygoid plate/greater wing of sphenoid
Insert: anterior condyle/articular capsule

13
Q

Which muscles open the mouth?

A

Lateral pterygoids, suprahyoids, infrahyoids

14
Q

Which muscles protrude the mandible?

A

Lateral and medial pterygoids

15
Q

Which muscles protrude the mandible?

A

Temporalis and masseter (deep)

16
Q

Which muscles perform excursive movements?

A

Ipsilateral masseter and temporalis

Contralateral medial and lateral pterygoids

17
Q

What is the freeway space?

A

Space between teeth in rest position

18
Q

T/F: Anytime you move out of MIP, VDO must increase.

A

True

19
Q

What happens when you swallow?

A

Teeth clench, elevator muscles engage, tongue presses to roof of mouth

20
Q

Which condyle will move during a right working movement?

A

Left lateral pterygoid pulls left condyle anteriorly

21
Q

What happens when both lateral pterygoids contract simultaneously?

A

Protrusion

22
Q

What is a Bennett movement?

A

Says that the working condyle moves slightly laterally in a working movement

23
Q

Describe class one angle’s classification.

A

MB cusp of Max M1 is in MB groove of mand M1

Max canine between mand canine and PM1