4DD/Dental anesthesia/Dr. Tung Leang/

Create an image of a dental professional administering anesthesia to a patient in a dental clinic, with a focus on dental tools and a comfortable environment.

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

50 Questions12 MinutesCreated by InjectingSmile123

3. Vasoconstrictor in Local anesthetic solution is?

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

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

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:?

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

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

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:?

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

Enhanced response

Depressed response

No effect

Enhanced response and no effect

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.?

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?

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:

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

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

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

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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4DD/Dental anesthesia/Dr. Tung Leang/

Dental Anesthesia Knowledge Quiz

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