Porcelain teeth are ____________
a. less resistant to stain and wear than acrylic teeth
b. more brittle than the acrylic teeth
c. not as noisy when the patient is eating or talking
d. none of the above
b
RATIONALE: Porcelain teeth are more brittle than the acrylic teeth.
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The period in the cell cycle when deoxyribonucleic acid (DNA) is synthesized is:
a. G1 b. S c. G2 d. M
A patient is a controlled hypertensive taking a propranolol (Inderal). The patient requires extraction of the maxillary first molar. Which of the following statements pertains to this patient regarding administration of a local anesthetic?
a. It is safe to administer mepivicaine 2% with levonordefrin. b. Initially administer three cartridges of mepivicaine 3% plain followed by mepivicaine 2% with levonordefrin. c. The maximum amount of lidocaine 2% and 1:50,000 epinephrine is two cartridges. d. The maximum amount of lidocaine 2% and 1:100,000 epinephrine is two cartridges.