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Dental Anesthesia 4DD Prof. Tong Leang (160 )

Create a visually engaging illustration of a dental professional administering local anesthesia in a clinic setting, showcasing dental tools and a patient in the dental chair, emphasizing a calm and professional atmosphere.

Dental Anesthesia Quiz

Test your knowledge and understanding of dental anesthesia with our comprehensive quiz designed for students and professionals in the field. This quiz covers critical topics related to local anesthetics, techniques, and potential complications.

Whether you are preparing for an exam or just want to challenge yourself, this quiz will provide:

Insight into anesthesia practices
Preparation for clinical scenarios
Evaluation of your knowledge on toxicities and patient management

60 Questions15 MinutesCreated by InjectingWisdom425

1. Surface activity and low toxic potential?

σ� Cocaine

σ� Benzocaine

σ� Bupivacaine

σ� procaine

σ� Lidocaine

2. Which of the following drugs can cause methemoglonemia?

σ� Cocaine

σ� Lidocaine

σ� Bupivacaine

σ� Procaine

σ� Prilocaine

3. Vasoconstrictor in Local anesthetic solution is?

σ� Reduce toxic effects of LA solution

σ� Decreases depth & duration of LA

σ� Increase bleeding

σ� Increase toxic effects of LA

σ� Has no effect on efficacy LA solution

4. When injecting Local solutionin maxilla on buccal side. The technique is ?

σ� Sup periosteal

σ� Supra periosteal

σ� Sup mucosal

σ� Intra osseous

σ� Intra septal

5. Disto buccal root of upper first molar is supplied by:?

σ� Middle superior alveolar nerve

σ� Posterior superior alveolar nerve

σ� Infra orbital nerve

σ� Mental nerve

σ� Buccal nerve

6. Technique of anesthesia in which local anesthetic solution is injected into the vein is ?

σ� Nerve block

σ� Infiltration anesthesia

σ� Intra venous regional anesthesia

σ� Epidural anesthesia

σ� No such technique exists

7. You suspect that your patient has an enlarged submandibular salivary gland. You expect the enlarged gland?

σ� to be palpable intraorally

σ� to be palpable extraorally.

σ� To be palpable both intra- and extraorally

σ� only to be detectable by radiographical examination.

During an inferior alveolar nerve block the needle ideally passes?

σ� Posterior and medial to medial pterygoid.

σ� anterior and lateral to medial pterygoid

σ� through medial pterygoid

σ� 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?

σ� Hard palate

σ� Hard palate and upper lip.

σ� Hard palate, upper lip and upper central incisor.

σ� 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?

σ� The incisive nerve

σ� The buccal nerve

σ� The lingual nerve

11. The regional lymphatic drainage of the left side of the tip of the tongue is to the?

σ� left submental lymph node

σ� left and right submental lymph nodes

σ� left submandibular lymph node.

σ� left and right submandibular lymph nodes

12. A successful inferior alveolar nerve block will produce anesthesia of the?

σ� lower lip.

σ� lower lip and mandibular teeth

σ� lower lip, mandibular teeth and labial gingivae of the anterior mandibular teeth

σ� 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?

σ� non-keratinised and has submucosa and minor salivary glands posteromedially

σ� non-keratinised and lacks submucosa and minor salivary glands.

σ� keratinised and has submucosa and minor salivary glands posterolaterally

σ� keratinised and lacks submucosa and minor salivary glands.

14. A successful infraorbital nerve block will produce anaesthesia of the?

σ� maxillary anterior teeth

σ� maxillary anterior teeth and their labial gingivae.

σ� 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?

σ� light pink in colour on both sides of the mucogingigival junction.

σ� light pink below the mucogingival junction and red above it.

σ� red on both sides of the mucogingival junction

σ� ed below the mucogingival junction and light pink above it

16. Advantage(s) of 5% lidocaine (Xylocaine)-prilocaine (Citanest) cream (eutectic mixture) is?

σ� no local irritation

σ� even absorption

σ� no systemic toxicity

σ� higher melting point of combined drug than either lidocaine (Xylocaine) or prilocaine (Citanest) alone

σ� no local irritation, even absorption and no systemic toxicity

17. Local anesthetic used in greater than 50% of rhinolaryngologic cases:?

σ� prilocaine (Citanest)

σ� cocaine

σ� mepivacaine (Carbocaine)

σ� bupivacaine (Marcaine)

σ� tetracaine (pontocaine)

18. Mechanism(s) of local anesthetic action in epidural anesthesia:?

σ� direct local anesthetic action on nerve roots and spinal cord following local anesthetic diffusion across the dura

σ� diffusion of local anesthetic into paravertebral regions through the intervertebral foramina

σ� neither

σ� 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

19. Rationale for adding epinephrine to a local anesthetic solution:?

σ� reduced local anesthetic systemic absorption

σ� increased anesthetic concentration near nerve fibers

σ� reduced duration of conduction blockade

σ� all of the above

σ� 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?

σ� epidural

σ� Spinal

σ� epidural and Spinal

21. Duration of sensory anesthesia is likely to be extended for abdominal regional anesthesia?

σ� True

σ� False

22. Primary side effect/toxicities associated with local anesthetic use:?

σ� allergic reactions

σ� systemic toxicity

σ� allergic reactions and systemic toxicity

σ� neither

23. Factors enhancing bupivacaine (Marcaine) toxicity?

σ� Pregnancy

σ� presence of calcium channel blockers

σ� arterial hypoxemia

σ� acidosis and hypercarbia

σ� Pregnancy, presence of calcium channel blockers, arterial hypoxemia, acidosis and hypercarbia

σ� Epinephrine

σ� phenylephrine (Neo-Synephrine)

σ� dextran

σ� Epinephrine, phenylephrine (Neo-Synephrine) and dextran

25. Typically a zone of differential sympathetic nervous system blockade?

σ� epidural

σ� spinal

σ� epidural and spinal

26. Preferred local anesthetics for local infiltration:?

σ� lidocaine (Xylocaine)

σ� ropivacaine (Naropin)

σ� bupivacaine (Marcaine)

σ� 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?

σ� anterior spinal artery syndrome

σ� cauda equina syndrome

σ� transient radicular irritation

28. Neurotoxicity -- moderate/severe lower back, buttocks, posterior side pain?

σ� cauda equina syndrome

σ� transient radicular irritation

σ� anterior spinal artery syndrome

29. Factors that influence lidocaine (Xylocaine) metabolism:?

σ� pregnancy-induced hypertension

σ� hepatic disease

σ� reduced liver blood flow

σ� volatile anesthetics

σ� pregnancy-induced hypertension, hepatic disease, reduced liver blood flow and volatile anesthetics

30. Most common cause of toxic plasma local anesthetic concentrations?

σ� accidental direct intravascular injection during block

σ� increase vasoconstrictors solution in the anesthetic

σ� without solution of vasoconstrictors for anesthetic

σ� incorrect dosage during peripheral or block

31. Common eutectic mixture of local anesthetics (EMLA)?

σ� lidocaine (Xylocaine) and tetracaine (pontocaine)

σ� prilocaine (Citanest) and bupivacaine (Marcaine)

σ� tetracaine (pontocaine) and bupivacaine (Marcaine)

σ� lidocaine (Xylocaine) and prilocaine (Citanest)

32. Most frequent local anesthetic clinical use:?

σ� treatment of grand mal seizure

σ� analgesia

σ� management of cardiac arrhythmias

σ� regional anesthetia

σ� management of increased intracranial pressure

33. Lidocaine (Xylocaine) effect on ventilation response to hypoxia?

σ� enhanced response

σ� depressed response

σ� no effect

σ� enhanced response and no effect

34. Clinical use(s) of EMLA applications:?

σ� arterial cannulation

σ� venipuncture

σ� myringotomy

σ� lumbar puncture

35. Allergic reactions to local anesthetics:?

σ� common > 10% of adverse reactions due to allergic mechanisms

σ� high-risk with ester-type agents which are metabolized to p-aminobenzoic acid-related compounds

σ� cross-sensitivity between esters and amide-type local anesthetics are common

σ� intradermal testing for possible allergy to local anesthetics should use preservative-free drug

σ� 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:?

σ� Hypokalemia

σ� rate of injection

σ� patient receiving mexiletine (Mexitil) when lidocaine (Xylocaine) is used

σ� high PaCO2 (reduced local anesthetic seizure threshold)

σ� 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.?

σ� lidocaine (Xylocaine)

σ� tetracaine (pontocaine

σ� mepivacaine (Carbocaine)

σ� bupivacaine (Marcaine)

σ� dyclonine (Dyclone)

38. Factor(s) that reduce lidocaine (Xylocaine) seizure threshold.?

σ� Hypoxemia

σ� Hyperkalemia

σ� Acidosis

σ� Hypoxemia, Hyperkalemia and Acidosis

39. Local anesthetic which produces localized vasoconstriction and anesthesia?

σ� tetracaine (pontocaine)

σ� lidocaine (Xylocaine)

σ� cocaine

σ� prilocaine (Citanest)

40. Agents not recommended for Bier block:

σ� chloroprocaine (Nesacaine

σ� mepivacaine (Carbocaine)

σ� bupivacaine (Marcaine)

σ� chloroprocaine (Nesacaine), mepivacaine (Carbocaine), and bupivacaine (Marcaine)

41. Manifestation of systemic toxicity

σ� CNS toxicity

σ� cardiovascular toxicity

σ� neurological symptoms

σ� CNS toxicity, cardiovascular toxicity and neurological symptoms

42. Most commonly used local anesthetic for rhinolaryngologic cases

σ� ropivacaine (Naropin)

σ� bupivacaine (Marcaine

σ� mepivacaine (Carbocaine)

σ� cocaine

σ� tetracaine (pontocaine)

43. Commonly use local anesthetics for topical/surface application:

σ� chloroprocaine (Nesacaine)

σ� lidocaine (Xylocaine)

σ� tetracaine (pontocaine)

σ� cocaine

σ� lidocaine (Xylocaine), tetracaine (pontocaine) and cocaine

44. Clinical presentations suggestive of local anesthetic allergies:

σ� Rash

Laryngeal edema

σ� bronchospasm

σ� urticarial and possibly hypotension

σ� All are correct

45. Local anesthetic most likely to cause cyanosis secondary to reduced oxygen transport:

σ� lidocaine (Xylocaine)

σ� bupivacaine (Marcaine)

σ� dibucaine (Nupercainal, generic)

σ� prilocaine (Citanest)

σ� procaine (Novocain)

46. This amide-type local anesthetic is used to assess the possible presence of atypical cholinesterase

σ� ropivacaine (Naropin)

σ� bupivacaine (Marcaine)

σ� dibucaine (Nupercainal, generic)

σ� procaine (Novocain)

σ� chloroprocaine (Nesacaine)

47. Toxicities associated with systemic epinephrine absorption following local anesthetic use with epinephrine included in the local anesthetic solution

σ� Hypertension

σ� Arrhythmias

σ� Hypertension and Arrhythmias

σ� Neither

48. ropivacaine (Naropin):less cardiotoxic then bupivacaine (Marcaine)

True

False

49. Factor(s) which determine extent of systemic local anesthetic absorption:

σ� initial dose

σ� injection site vascularity

σ� intrinsic drug properties

σ� whether or not epinephrine was used to provide local vasoconstriction

σ� All are not correct

50. Lidocaine (Xylocaine) cardiotoxicity -- electrophysiological characteristics

σ� ECG -PR interval prolongation

σ� increased conduction velocity

σ� reduced phase 4 depolarization

σ� reduced automaticity

σ� All are not correct

51. Local anesthetic lipophilicity and effectiveness of epinephrine on local anesthesia:

σ� more lipophilic anesthetics benefit most by epinephrine in addition to local anesthetic solutions

σ� more lipophilic anesthetics benef ileast by epinephrine in addition to local anesthetic solutions®

52. Neurotoxicity following local anesthesia: lower extremity paresis-- predisposing conditions may include

σ� transient radicular irritation

σ� cauda equina syndrome

σ� anterior spinal artery syndrome

σ� cauda equina syndrome and anterior spinal artery syndrome

53. Local anesthetic not recommended for peripheral nerve blockade:

σ� lidocaine (Xylocaine)

σ� bupivacaine (Marcaine)

σ� ropivacaine (Naropin)

σ� tetracaine (pontocaine)

54. Frequently used amide-type local anesthetic for Bier block

σ� chloroprocaine (Nesacaine

σ� prilocaine (Citanest)

σ� bupivacaine (Marcaine)

σ� ropivacaine (Naropin)

55. The first ever peripheral nerve block is performed by

σ� William Salk

σ� Nils Lofgren

σ� William Halsted

σ� Alfred Einhorn

56. The axons of peripheral nerve is supported by

σ� Support by Connective tissue

σ� Supported by cell

σ� Support by muscle

σ� Support by blood

57. Unmeyelinated fiber is surround by

σ� A single wrapping

σ� Plural wrapping

σ� Wrapping by nerve

σ� Wrapping by artery

58. The function organization of axon and schwann cell is called

σ� Nerve fiber

σ� Nerve cell

σ� Neuron cell

σ� Call myelin sheath

59. The groups of the axon, the fasciculi, are enclosed in an additional connective tissue sheath called

σ� The perineurium

σ� Endoneurium

σ� Fasciculi

σ� Epineurium

60. Individual nerve fibers(axons) are surround and separated from each other by

σ� Edoneurium

σ� Perineurium

σ� Epineurium

σ� Fasciculi

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