Deck 5: Temporomandibular Joint

Question 1

Opening the jaws during speech and mastication involves BOTH elevation and retraction of the mandible. When the jaws close, this involves BOTH depression and protrusion of the mandible.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Answer 1

B

Question 2

Including examination of the temporomandibular joint (TMJ) during the extraoral examination is important to detect changes such as disc perforation BECAUSE disc perforation is commonly found in females and males during puberty.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but NOT related.
C) The statement is correct, but the reason is NOT.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Answer 2

C

Question 3

The dental professional plays an important role in the recognition, treatment, and maintenance of patients with temporomandibular disorder (TMD). All signs and symptoms related to TMD need to be recorded by the dental professional, as well as any parafunctional habits and related systematic diseases.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Answer 3

A

Question 4

What is the depression located between the condyle and coronoid process of the temporomandibular joint?

A) Sublingual fossa
B) Supraorbital notch
C) Temporal space
D) Mandibular notch

Question 5

Which ligament associated with the temporomandibular joint (TMJ) prevents excessive retraction or moving backward of the mandible?

A) Temporomandibular joint ligament
B) Sphenomandibular ligament
C) Stylomandibular ligament
D) Stylohyoid ligament

Question 6

When examining the joint, joint sounds may be heard because of disc derangement. Joint sounds are a reliable indicator of temporomandibular disorder (TMD).

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Question 7

The temporomandibular joint (TMJ) allows for movement of the mandible during speech and mastication. Two basic types of movement are performed by the joint and its associated muscles: a gliding movement and a rotational movement.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Question 8

The temporal bone and mandible come together to form the temporomandibular joint BECAUSE a joint is defined as a junction or union between two or more bones.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but NOT related.
C) The statement is correct, but the reason is NOT.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question 9

Which of the following ligaments is NOT associated with the temporomandibular joint (TMJ) ?

A) Temporomandibular joint ligament
B) Sphenomandibular ligament
C) Stylomandibular ligament
D) Stylohyoid ligament

Question 10

The disc of the temporomandibular joint (TMJ) is attached to the lateral and medial poles of the mandibular condyle. The disc is fully attached to the temporal bone to all sides of the bone.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Question 11

What occurs with the dislocation of BOTH the temporomandibular joints on a patient?

A) Subluxation
B) Cellulitis
C) Paresthesia
D) Thrombus

Question 12

What is the fossa located on the temporal bone that articulates with the mandible?

A) Temporal fossa
B) Infratemporal fossa
C) Ptergopalatine fossa
D) Glenoid fossa

Question 13

The disc of the temporomandibular joint (TMJ) is a fibrous disc located between the temporal bone and the coronoid process of the mandible on each side. This disc conforms to the shape of the bones and is related to normal joint movement.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, and the second is false.
D) The first statement is false, and the second is true.

Question 14

What is another term used for articular fossa of the temporomandibular joint?

A) Submandibular
B) Glenoid
C) Pterygoid
D) Temporal

Question 15

What type of temporomandibular joint (TMJ) movement(s) occur during lateral deviation of the mandible or shifting of the lower jaw to one side?

A) Gliding movement on both sides
B) Rotational movement on both sides
C) Gliding movement on one side and no movement on the other side
D) Gliding movement on one side and rotational movement on the other side

Question 16

What movement of the temporomandibular joint (TMJ) occurs MAINLY between the disc and the condyle of the mandible in the lower synovial cavity?

A) Retraction
B) Protrusion
C) Rotation
D) Gliding

Question 17

The rest position of the temporomandibular joint (TMJ) is NOT with the teeth biting together BECAUSE as we observe during mastication of food, the mandible returns to the center.

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but NOT related.
C) The statement is correct, but the reason is NOT.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question 18

The gliding movement of the temporomandibular joint allows the lower jaw to move forward or backward. What movement of the mandible is involved when the lower jaw moves forward?

A) Retraction
B) Protrusion
C) Elevation
D) Depression

Question 19

The temporomandibular joint (TMJ) is innervated by the maxillary nerve (division) of the fifth cranial or trigeminal nerve. The blood supply to the joint is from branches of the external carotid artery.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true; the second is false.
D) The first statement is false; the second is true.

Question 20

Which ligament associated with the temporomandibular joint is a landmark for the administration of inferior alveolar local anesthetic nerve block?

A) Temporomandibular joint ligament
B) Sphenomandibular ligament
C) Stylomandibular ligament
D) Stylohyoid ligament

Question 21

From the following list of actions involving the temporomandibular joint, select those that are DIRECTLY associated with lateral deviation of the joint.

A) Single lateral pterygoid muscle contraction
B) Gliding movement
C) Rotational movement
D) Both lateral pterygoid muscle contractions

Question 22

As a person ages or undergoes trauma to the area, the disc of the temporomandibular joint can become thicker or even perforated. Perforation can lead to clinical problems.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Question 23

From the following list of situations, select those situations that can occur with the aging of the disc of the temporamandibular joint.

A) Thinner
B) Perforated
C) Dislocated
D) Thicker
E) Hypermobile

Question 24

The base of this triangular ligament is attached to the zygomatic process of the temporal bone and the articular tubercle; its apex is fixed to the lateral side of the neck of the mandible. This ligament prevents the excessive protrusion or moving forward for the mandible, a situation that might lead to problems with the temporomandibular joint (TMJ).

A) Both the statement and the reason are correct and related.
B) Both the statement and the reason are correct but NOT related.
C) The statement is correct, but the reason is NOT.
D) The statement is NOT correct, but the reason is correct.
E) NEITHER the statement NOR the reason is correct.

Question 25

The sphenomandibular ligament is a landmark for the administration of (long) buccal nerve block and is also involved in troubleshooting the injection due to its location.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Question 26

From the following list of actions, select the usual procedures in the examination of the temporomandibular joint.

A) Patient biting on wax impression
B) Bilateral palpation of all joint movements
C) Digital palpation of external acoustic meatus
D) Ausculation of the joint
E) Extraoral radiography of the joint region

Question 27

The resting position of the temporomandibular joint (TMJ) can be noted with the teeth _____ to allow a physiologic rest for the mandible.

A) biting together
B) apart at 2 to 4 mm
C) resting together
D) apart at 6 to 10 mm

Question 28

From the following list of descriptions, select those descriptions that can be applied to the joint capsule of the temporomandibular joint.

A) Wraps around only the superior part
B) Wraps around articular eminence and fossa
C) Wraps around the condyle circumference
D) Wraps around the coronoid process circumference
E) Wraps around only the inferior part

Question 29

When considering temporomandibular disorders (TMD), MOST symptoms seem to originate from the nerve surrounding the joint. In addition, MOST recent studies support the role of TMD in directly causing headaches, neck or back pain, or instability.

A) Both statements are true.
B) Both statements are false.
C) The first statement is true, the second is false.
D) The first statement is false, the second is true.

Question 30

From the following list of descriptions, select those descriptions that can be applied to the stylomandibular ligament of the temporomandibular joint.

A) Variable ligament anatomically
B) Formed from sphenomandibular ligament extension
C) Formed from thickened area cervical fascia
D) Consistent ligament anatomically
E) Become taut with mandibular protrusion