4DD/Dental anesthesia/Dr. Tung Leang/
Dental Anesthesia Knowledge Quiz
Test your understanding of dental anesthesia with this comprehensive quiz designed for dental professionals and students. Explore various aspects of local anesthetics, their techniques, and effects.
- Covering important drug classifications
- Evaluating techniques and effects
- Perfect for learners and practitioners
1. Surface activity and low toxic potential?
Cocaine
Benzocaine
Bupivacaine
Procaine
Lidocaine
2. Which of the following drugs can cause methemoglonemia?
Cocaine
Lidocaine
Bupivacaine
Procaine
Prilocaine
3. Vasoconstrictor in Local anesthetic solution is?
Reduce toxic effects of LA solution
Decreases depth & duration of LA
Increase bleeding
Increase toxic effects of LA
Has no effect on efficacy LA solution
4. When injecting Local solutionin maxilla on buccal side. The technique is ?
Sup periosteal
Supra periosteal
Sup mucosal
Intra osseous
Intra septal
5. Disto buccal root of upper first molar is supplied by:?
Middle superior alveolar nerve
Posterior superior alveolar nerve
Infra orbital nerve
Mental nerve
Buccal nerve
6. Technique of anesthesia in which local anesthetic solution is injected into the vein is ?
Nerve block
Infiltration anesthesia
Intra venous regional anesthesia
Epidural anesthesia
No such technique exists
7. You suspect that your patient has an enlarged submandibular salivary gland. You expect the enlarged gland?
To be palpable intraorally
To be palpable extraorally.
To be palpable both intra- and extraorally
Only to be detectable by radiographical examination.
8. During an inferior alveolar nerve block the needle ideally passes?
Posterior and medial to medial pterygoid
Anterior and lateral to medial pterygoid
Through medial pterygoid
Inferior to medial pterygoid.
9. You notice that your patient's submandibular lymph nodes are enlarged. You would look for potential infection sites in the?
Hard palate.
Hard palate and upper lip.
Hard palate, upper lip and upper central incisor.
Hard palate, upper lip, upper central incisor and lower first molar
10. You notice a lesion on the labial alveolar mucosa of the lower right lateral incisor tooth of one of your patients and decide to take a biopsy to send for oral pathology report Which nerve would require local anesthesia in order to carry out a pain-free biopsy?
The incisive nerve
The buccal nerve
The lingual nerve
11. The regional lymphatic drainage of the left side of the tip of the tongue is to the?
Left submental lymph node.
Left and right submental lymph nodes
Left submandibular lymph node.
Left and right submandibular lymph nodes.
12. A successful inferior alveolar nerve block will produce anesthesia of the?
Lower lip.
Lower lip and mandibular teeth
Lower lip, mandibular teeth and labial gingivae of the anterior mandibular teeth
Lower lip, mandibular teeth and labial gingivae of the anterior and buccal gingivae of the posterior mandibular teeth.
13. The mucosa of the hard palate is?
Keratinised and has submucosa and minor salivary glands posterolaterally
Non-keratinised and has submucosa and minor salivary glands posteromedially
Keratinised and lacks submucosa and minor salivary glands.
Non-keratinised and lacks submucosa and minor salivary glands.
14. A successful infraorbital nerve block will produce anaesthesia of the?
Maxillary anterior teeth.
Maxillary anterior teeth and their labial gingivae.
Maxillary anterior teeth, their labial gingivae and the upper lip
Maxillary anterior teeth, their labial gingivae, the upper lip and anterior hard palate
15. In a patient with a normal healthy mouth, you would expect the mucosa covering the alveolar process supporting the mandibular teeth to be?
Light pink in colour on both sides of the mucogingigival junction
Light pink below the mucogingival junction and red above it
ed below the mucogingival junction and light pink above it
Red on both sides of the mucogingival junction
16. Advantage(s) of 5% lidocaine (Xylocaine)-prilocaine (Citanest) cream (eutectic mixture) is?
No local irritation
Even absorption
No systemic toxicity
Higher melting point of combined drug than either lidocaine (Xylocaine) or prilocaine (Citanest) alone
No local irritation, even absorption and no systemic toxicity
17. Local anesthetic used in greater than 50% of rhinolaryngologic cases:?
Prilocaine (Citanest)
Cocaine
Mepivacaine (Carbocaine)
Bupivacaine (Marcaine)
Tetracaine (pontocaine)
18. Mechanism(s) of local anesthetic action in epidural anesthesia:?
Direct local anesthetic action on nerve roots and spinal cord following local anesthetic diffusion across the dura
Diffusion of local anesthetic into paravertebral regions through the intervertebral foramina
Direct local anesthetic action on nerve roots and spinal cord following local anesthetic diffusion across the dura and diffusion of local anesthetic into paravertebral regions through the intervertebral foramina
Neither
19. Rationale for adding epinephrine to a local anesthetic solution:?
Reduced local anesthetic systemic absorption
Increased anesthetic concentration near nerve fibers
Reduced duration of conduction blockade
All of the above
Reduced local anesthetic systemic absorption and increased anesthetic concentration near nerve fibers
20. Zone of differential motor blockade may average up to four segments below the sensory level?
Epidural
Spinal
Epidural and Spinal
21. Duration of sensory anesthesia is likely to be extended for abdominal regional anesthesia?
True
False
22. Primary side effect/toxicities associated with local anesthetic use:?
Allergic reactions
Systemic toxicity
Allergic reactions and systemic toxicity
Neither
23. Factors enhancing bupivacaine (Marcaine) toxicity?
Pregnancy
Presence of calcium channel blockers
Arterial hypoxemia
Acidosis and hypercarbia
Pregnancy, presence of calcium channel blockers, arterial hypoxemia, acidosis and hypercarbia
24. Agents added to local anesthetics that prolonged local anesthetic duration of action?
Epinephrine
Phenylephrine (Neo-Synephrine)
Dextran
Epinephrine, phenylephrine (Neo-Synephrine) and dextran
25. Typically a zone of differential sympathetic nervous system blockade?
Epidural
Spinal
Epidural and spinal
26. Preferred local anesthetics for local infiltration:?
Lidocaine (Xylocaine)
Ropivacaine (Naropin)
Bupivacaine (Marcaine)
Lidocaine (Xylocaine), ropivacaine (Naropin) and bupivacaine (Marcaine)
27. Neurotoxicity associate with local anesthesia: sensory anesthesia, bowell & bladder sphincter dysfunction, paraplegia -- may because by nonhomogeneous local anesthetic distribution?
Anterior spinal artery syndrome
Cauda equina syndrome
Transient radicular irritation
28. Neurotoxicity -- moderate/severe lower back, buttocks, posterior side pain?
Cauda equina syndrome
Transient radicular irritation
Anterior spinal artery syndrome
29. Factors that influence lidocaine (Xylocaine) metabolism:?
Pregnancy-induced hypertension
Hepatic disease
Reduced liver blood flow
Volatile anesthetics
Pregnancy-induced hypertension, hepatic disease, reduced liver blood flow and volatile anesthetics
30. Most common cause of toxic plasma local anesthetic concentrations?
Incorrect dosage during peripheral or block
Accidental direct intravascular injection during block
Increase vasoconstrictors solution in the anesthetic
Without solution of vasoconstrictors for anesthetic
31. Common eutectic mixture of local anesthetics (EMLA)?
Tetracaine (pontocaine) and epinephrine
Lidocaine (Xylocaine) and tetracaine (pontocaine)
Prilocaine (Citanest) and bupivacaine (Marcaine)
Tetracaine (pontocaine) and bupivacaine (Marcaine)
Lidocaine (Xylocaine) and prilocaine (Citanest)
32. Most frequent local anesthetic clinical use:?
Treatment of grand mal seizure
Analgesia
Management of cardiac arrhythmias
Regional anesthetia
Management of increased intracranial pressure
33. Lidocaine (Xylocaine) effect on ventilation response to hypoxia?
Enhanced response
Depressed response
No effect
Enhanced response and no effect
34. Clinical use(s) of EMLA applications:?
Arterial cannulation
Venipuncture
Myringotomy
Lumbar puncture
35. Allergic reactions to local anesthetics:?
Common > 10% of adverse reactions due to allergic mechanisms
High-risk with ester-type agents which are metabolized to p-aminobenzoic acid-related compounds
Cross-sensitivity between esters and amide-type local anesthetics are common
Intradermal testing for possible allergy to local anesthetics should use preservative-free drug
High-risk with ester-type agents which are metabolized to p-aminobenzoic acid-related compounds and intradermal testing for possible allergy to local anesthetics should use preservative-free drug
36. Factors which increase local anesthetic CNS toxicities:?
Hypokalemia
Rate of injection
Patient receiving mexiletine (Mexitil) when lidocaine (Xylocaine) is used
High PaCO2 (reduced local anesthetic seizure threshold)
Rate of injection, patient receiving mexiletine (Mexitil) when lidocaine (Xylocaine) is used and high PaCO2 (reduced local anesthetic seizure threshold)
37. Least likely to exhibit cross-sensitivity with amide or ester local anesthetics.?
Lidocaine (Xylocaine)
Tetracaine (pontocaine)
Mepivacaine (Carbocaine)
Bupivacaine (Marcaine)
Dyclonine (Dyclone)
38. Factor(s) that reduce lidocaine (Xylocaine) seizure threshold.?
Hypoxemia
Hyperkalemia
Acidosis
Hypoxemia, Hyperkalemia and Acidosis
39. Local anesthetic which produces localized vasoconstriction and anesthesia?
Tetracaine (pontocaine)
Lidocaine (Xylocaine)
Cocaine
Prilocaine (Citanest)
Chloroprocaine (Nesacaine)
40. Agents not recommended for Bier block:
Chloroprocaine (Nesacaine
Mepivacaine (Carbocaine)
Bupivacaine (Marcaine)
Chloroprocaine (Nesacaine), mepivacaine (Carbocaine), and bupivacaine (Marcaine)
41. Manifestation of systemic toxicity
CNS toxicity
Cardiovascular toxicity
Neurological symptoms
CNS toxicity, cardiovascular toxicity and neurological symptoms
42. Most commonly used local anesthetic for rhinolaryngologic cases
Ropivacaine (Naropin)
Bupivacaine (Marcaine)
Mepivacaine (Carbocaine)
Cocaine
43. Commonly use local anesthetics for topical/surface application:
Chloroprocaine (Nesacaine)
Lidocaine (Xylocaine)
Tetracaine (pontocaine)
Cocaine
Lidocaine (Xylocaine), tetracaine (pontocaine) and cocaine
44. Clinical presentations suggestive of local anesthetic allergies:
Rash
Laryngeal edema
Bronchospasm
Urticarial and possibly hypotension
All are correct
45. Local anesthetic most likely to cause cyanosis secondary to reduced oxygen transport:
Lidocaine (Xylocaine)
Bupivacaine (Marcaine)
Dibucaine (Nupercainal, generic)
Prilocaine (Citanest)
Procaine (Novocain)
46. This amide-type local anesthetic is used to assess the possible presence of atypical cholinesterase
Ropivacaine (Naropin)
Bupivacaine (Marcaine)
Dibucaine (Nupercainal, generic)
Procaine (Novocain)
Chloroprocaine (Nesacaine)
47. Toxicities associated with systemic epinephrine absorption following local anesthetic use with epinephrine included in the local anesthetic solution
Hypertension
Arrhythmias
Hypertension and Arrhythmias
Neither
48. ropivacaine (Naropin):less cardiotoxic then bupivacaine (Marcaine)
True
false
49. Factor(s) which determine extent of systemic local anesthetic absorption:
Initial dose
Injection site vascularity
Intrinsic drug properties
Whether or not epinephrine was used to provide local vasoconstriction
All are not correct
50. Lidocaine (Xylocaine) cardiotoxicity -- electrophysiological characteristics
ECG -PR interval prolongation
Increased conduction velocity
Reduced phase 4 depolarization
All are not correct
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