Deck 10: Diseases Affecting the Temporomandibular Joint

Question 1

Trauma affecting the TMJ is classified as direct, indirect, and secondary to parafunctional habits. Which of the following is an example of a parafunctional habit?

A)Whiplash injury
B)Assault
C)Surgery
D)Clenching

Answer 1

Clenching

Question 2

Clicking and popping most commonly reflect:

A)parafunctional habits such as bruxism and clenching.
B)disk displacement with reduction.
C)malocclusion.
D)trismus.

Answer 2

disk displacement with reduction.

Question 3

Which of the following statements about the articular disk in the temporomandibular joint is true?

A)It is attached to the anterior and posterior aspects of the condyle.
B)It is attached to the inferior belly of the medial pterygoid muscle.
C)The disk is highly vascular.
D)The disk is surrounded and protected by the fibrous connective tissue joint capsule.

Answer 3

The disk is surrounded and protected by the fibrous connective tissue joint capsule.

Question 4

All of the following are benign tumors that arise in the condyle except one. Which one is the exception?

A)Osteoblastoma
B)Synovial chondromatosis
C)Osteoma
D)Chondroblastoma

Question 5

The temporomandibular joint (TMJ) is the articulation between the condyle of the mandible and the:

A)zygomatic process of the temporal bone.
B)glenoid fossa of the temporal bone.
C)external acoustic meatus.
D)spine of the sphenoid bone.

Question 6

Caution is recommended with long-term use of nonsteroidal antiinflammatory drugs (NSAIDs) because of what type of complications?

A)Gastrointestinal
B)Cardiovascular
C)Psychiatric
D)Arthritis

Question 7

Hypermobility in which the patient is able to relocate the mandible back into the glenoid fossa is referred to as:

A)subluxation.
B)dislocation.
C)ankylosis.
D)myofascial pain.

Question 8

An open lock that the patient cannot reduce is called:

A)subluxation.
B)dislocation.
C)ankylosis.
D)myofascial pain.

Question 9

Opening, or depressor function, of the mandible is accomplished primarily by the _____ muscle.

A)medial pterygoid
B)lateral pterygoid
C)masseter
D)temporalis

Question 10

The temporomandibular joint exhibits ginglymoarthrodial, or _____, movement.

A)rotational and translational
B)opening
C)closing
D)maximal interdigitation

Question 11

The purpose of the synovial fluid is to:

A)provide nourishment and lubrication.
B)divide the space into upper and lower compartments.
C)govern mandibular movement.
D)separate forces resulting from movement.

Question 12

Which type of dental radiography is best for examining disk position, function, form, and the presence of joint effusions?

A)Panoramic imaging
B)Transcranial imaging
C)Computerized tomography (CT)
D)Magnetic resonance imaging (MRI)

Question 13

Tenderness over the lateral pole of the condyle is indicative of:

A)crepitus.
B)capsulitis.
C)trismus.
D)auscultation.

Question 14

Which of the following statements is characteristic of a patient with osteoarthritis?

A)It is characterized by pain that is worse in the morning.
B)It is characterized by pain that is worse in the evening.
C)It is an inflammatory, autoimmune disorder of the joints.
D)Approximately 50% to 75% of patients have involvement of the temporomandibular joint during the course of the disease.

Question 15

During opening of the jaw:

A)rotational movement precedes translation.
B)rotational movement follows translation.
C)there is only rotational movement; translation occurs only during closure.
D)there is only translational movement; rotation occurs only during closure.

Question 16

Which of the following choices represents an indirect form of trauma affecting the temporomandibular joint?

A)Clenching, bruxism
B)Whiplash injury
C)Psychosocial factors
D)Osteoarthritis

Question 17

Temporomandibular dysfunction (TMD) can be caused by disorders of the muscles of mastication or by internal derangements of the components of the joint. Three cardinal features that suggest TMD include orofacial pain, joint noise, and restricted jaw function.

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 18

The most common systemic conditions that affect the TMJ are:

A)Sjögren syndrome and scleroderma.
B)rheumatoid arthritis and juvenile rheumatoid arthritis.
C)gout and Reiter syndrome.
D)ankylosing spondylitis and mixed connective tissue disease.

Question 19

Which type of dental radiography is best for identifying bone abnormalities such as osteophytes, condylar erosion, fractures, ankylosis, and condylar hyperplasia?

A)Panoramic imaging
B)Transcranial imaging
C)Computerized tomography (CT)
D)Magnetic resonance imaging (MRI)

Question 20

While up to _____% of the adult population has at least one sign and/or symptom of a temporomandibular disorder (TMD), most studies suggest that clinically significant TMD-related jaw pain, dysfunction, or both affects about _____% of the general population.

A)90; 10
B)75; 13
C)50; 10
D)25; 5

Question 21

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Trismus

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 22

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Arthrocentesis

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 23

_____ ankylosis is the most common type seen in the temporomandibular joint.

A)Fibrotic intraarticular
B)Bony intraarticular
C)Fibrotic extraarticular
D)Bony extraarticular

Question 24

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Palpation

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 25

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Iatrogenic

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 26

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Crepitus

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 27

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Auscultation

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 28

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Arthroscopy

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 29

About _____% of all TMJ ankylosis cases result from joint infection, usually after trauma.

A)10
B)30
C)50
D)70

Question 30

The three elevator muscles of mastication that when activated, close the mandible, include the masseter, the medial pterygoid, and the _____.

A)lateral pterygoid
B)temporalis
C)anterior digastric
D)mylohyoid

Question 31

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

MRI

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 32

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Sign

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 33

Of the various surgical techniques used to treat TMDs, _____ involves surgical repositioning of the condyle.

A)arthrocentesis
B)arthroscopy
C)condylotomy
D)open joint surgery

Question 34

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Arthrography

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 35

Children are _____ prone to TMJ ankylosis than adults because of greater osteogenic potential and _____ development of the joint meniscus.

A)more; more
B)more; less
C)less; more
D)less; less

Question 36

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Symptom

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 37

MATCHING
For each vocabulary word below, select the corresponding definition from the list provided.

Articulation

A)Method for evaluating and manipulating a joint via the insertion of a camera and instruments
B)Dry, crackling sound
C)Surgical puncture of a joint followed by lavage of joint space
D)Physical examination using pressure of the hand or fingers
E)Inability to fully open the mouth
F)Radiography of a joint after injection of opaque contrast material
G)Noninvasive diagnostic technique that uses radio waves to produce computerized images of internal body tissues
H)Listening to sounds within the body, using a stethoscope
I)Subjective evidence of disease or a physical disorder that is observed by the patient
J)Objective evidence of disease that can be observed by a health care provider rather than by the patient
K)Joint
L)Induced inadvertently by a medical or dental care provider or by medical treatment or a diagnostic procedure

Question 38

Synovial _____ is the most common benign neoplasm of the synovium.

A)osteoblastoma
B)chondroblastoma
C)osteoma
D)chondromatosis