Anesthesia of mandibular teeth in adults by the infiltration method would be achieved best by the use
of:
A. 1.8 mL of Prilocaine 4% + epinephrine 1:100,000.
B. 1.8 mL of Bupivacaine 0.5% + epinephrine 1:200,000.
C. 1.8 mL of Mepivacaine 2% + levonordefrin 1:20,000.
D. 1.8 mL of Articaine 4% + epinephrine 1:100,000 - Answers D. 1.8 mL of Articaine 4% + epinephrine
1:100,000
Which of the following statements is true regarding an overdose of local anesthesia?
A. Injecting using a 30 gauge needle should be done to limit the rate of injection.
B. Most overdoses occur when using no vasoconstrictor.
C. Injection of a carpule of anesthetic should be done over a 30 second time frame.
D. Most overdoses occur in elderly patients. - Answers B. Most overdoses occur when using no
vasoconstrictor.
The ability to titrate medication, predictability, and the ability to provide amnesic properties best
describes__________ sedation.
A. intramuscular
B. oral
C. intravenous
D. subcutaneous - Answers C. intravenous
Inhalation of N2O/O2 allows for cognitive recovery with 100% p
ure oxygen for a minimum of __________ minutesafter termination of the drug.
A. five (5)
,B. ten (10)
C. thirty (30)
D. sixty (60) - Answers A. five (5)
Pain control of the entire primary dentition can be achieved with
approximately two cartridges of local anesthetic.The most recommended drug in this case is:
A. 4% articaine + epinephrine.
B. 3% mepivicaine.
C. 2% lidocaine + epinephrine.
D. 2% mepivicaine + levonordephrine. - Answers C. 2% lidocaine + epinephrine.
Diffusion hypoxia can be prevented by:
A. a gradual reduction of the nitrous oxide/oxygen concentration.
B. using a less than 20% nitrous oxide/oxygen concentration.
C. starting induction of sedation with 100% oxygen for 3-5 minutes.
D. administering 100% oxygen for 3-5 minutes after cessation of nitrous oxide. - Answers D.
administering 100% oxygen for 3-5 minutes after cessation of nitrous oxide.
The only vasoconstrictor used in local anesthetics that is contraindicated with concomitant MAO
inhibitor therapy is:
A. phenylephrine.
B. norepinephrine.
C. epinephrine.
D. levonordetrin. - Answers A. phenylephrine.
All of the following statements about chemically activated (self cure) resins are true except one. Which
is the exception?
, A. They have long term storage stability.
B. They can yellow with age.
C. The degree of cure is equal if mixed properly.
D. Marginal stress buildup is much higher than for photocured resins - Answers D. Marginal stress
buildup is much higher than for photocured resins
There are extremely sensitive methods for detecting mercury in parts per trillion. There is no data to
show that the mercury released from dental amalgam is harmful to the general population.
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 - Answers A. Both statements are TRUE.
A dental bonding system has all of the following essential functions except one. Which is the exception?
A. Provides resistance to separation of a substrate from a restorative material.
B. Distributes stress along bonded interfaces.
C. Provides thermal insulation between materials.
D. Seals the interface - Answers C. Provides thermal insulation between materials.
The success of endosseous dental implants is based on the biocompatibility of the implant surface and
the ingrowth of new bone into the surface through the process of osseointegration. There are many
implant materials or implant coatings that promote osseointegration.
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 - Answers C. The first statement is TRUE; the second
is FALSE.