chapter 10
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
B
An open lock that the patient cannot reduce is called: a. subluxation. b. dislocation. c. ankylosis. d. myofascial pain.
B
Caution is recommended with long-term use of nonsteroidal anti-inflammatory drugs (NSAIDs) because of what type of complications? a. Gastrointestinal b. Cardiovascular c. Psychiatric d. Arthritis
B
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
B
Clicking and popping most commonly reflect: a. parafunctional habits such as bruxism and clenching. b. disk displacement with reduction. c. malocclusion. d. trismus.
B
Opening, or depressor function, of the mandible is accomplished primarily by the _____ muscle. a. medial pterygoid b. lateral pterygoid c. masseter d. temporalis
B
Tenderness over the lateral pole of the condyle is indicative of: a. crepitus. b. capsulitis. c. trismus. d. auscultation.
B
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.
B
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. 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 closured. spine of the sphenoid bone.
B
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
B
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
B
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
A
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.
A
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.
A
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.
A
The temporomandibular joint exhibits ginglymoarthrodial, or _____, movement. a. rotational and translational b. opening c. closing d. maximal interdigitation
A
_____ ankylosis is the most common type seen in the temporomandibular joint. a. Fibrotic intraarticular b. Bony intraarticular c. Fibrotic extraarticular d. Bony extraarticular
A
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.
B
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
B
About _____% of all TMJ ankylosis cases result from joint infection, usually after trauma. a. 10 b. 30 c. 50 d. 70
C
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
C
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)
C
Synovial _____ is the most common benign neoplasm of the synovium. a. osteoblastoma b. chondroblastoma c. osteoma d. chondromatosis
D
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
D
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.
D
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)
D