An adult patient presents with a temperature of 101O F (38O C). He complains of a limited ability to
open the mandible and exhibits obvious discomfort. Upon closing the mandible, tooth #31 exhibits
premature occlusion. Examination reveals swelling that extends from the apical area of tooth #31 to
the cheek, as well as a large carious lesion on tooth #31.
1. Purulent material will most likely be found in which of the following facial spaces?
A. Buccal
B. Sublingual
C. Submandibular
D. Pterygomandibular
2. In studying the purulent material, which of the following is the most likely energy producing
metabolic activity of its primary microorganism?
A. Fermentation
B. Phosphorylation
C. Aerobic respiration
D. Anaerobic respiration
because anaerobic respiration occurs in all anaerobic organisms and fermentation occurs only in yeast, although the end product is same.
the only difference is in fermentation ENDOGENEOUS electron acceptor is used while in anaerobic EXOGENEOUS e receptor is used
3. On opening the mandible, in which of the following directions will it most likely deviate?
A. Left.
B. Right
C. Retrude
D. Protrude
4. Which of the following physiologic factors most likely explains this patients elevated temperature? The release of
A. histamine.
B. prostaglandin.
C. tumor necrosis.
D. glucocorticoids.
5. The carious process in the anatomical crown of tooth #31 was most likely initiated by which of the following organisms?
A. Actinomyces actinomadura
B. Lactobacillus acidophilus
C. Prevotella negrescens
D. Streptococcus mutans
6.At a subsequent visit the tooth is anesthetized and prepared for a crown. The patient calls thefollowing day complaining of pain at the injection site and inability to open fully. The most
likely explanation is
A. spasm of the temporalis muscle.
B. trauma to the inferior alveolar nerve.
C. injection into the medial pterygoid muscle.
D. damage to the facial nerve during the injection.
An infant is brought to the hospital with severe abrasions following a bicycle accident involving the mother. What should be the initial treatment?
A. Conduct a visual examination.
B. Treat for infection.
C. Administer pain killers to calm the infant.
D. Send for laboratory results.
E
. Clean the wounds with an antiseptic.
When a patient bruxes the teeth, which of the following muscles might become
overdeveloped?
A. Masseter
B. Geniohyoid
C. Buccinator
D. Glossopharyngeal
E. Lateral pterygoid