e. How is the anesthesia reversed? 5. What are the two chemical groups of local

Question

e. How is the anesthesia reversed? 5. What are the two chemical groups of local anesthetic? topical anesthetics? How are they metabolized? Which one is used primarily in 6. What are the contents of a local anesthetic cartridge? 1. What does a vasoconstrictor do? What happens when it is used? 2. What types of vasoconstrictors are used in anesthetic? What do the ratios mean? 3. What are the contraindications to vasoconstrictors? 1. List the five potential complications with local anesthetic 2. How does the dentist check to make sure that they are not injecting into a blood vessel? 3. How does anesthetic affect infected areas? 4. List and describe the two types of toxic reactions? 5. What are the complications with temporary numbness?

Explanation / Answer

Complications and precautions

1.Ans-

The potential complications with local anesthetic include:

i) Overdosage

ii) Paresthesias or Prolonged anesthesia

iii) injection

iv) Facial nerve paralysis

v) Soft tissue injury

2.Ans-

The dentist always checks to make sure by an aspirate before injecting any solution.

3. Ans-

After applying anesthetics, it stops the nerves in an infected area sending signals to the brain. As a result, no pain is feeling after applying anesthetic.

4.Ans-

A toxic reaction occurs from the adverse effects of chemicals or physical agents on living organisms. The two types of toxic reaction include:

i) Acute toxicity: This reaction occurs immediately(within 24 hours) after exposure. Example: In each year, many people die due to inhaling carbon monoxide from faulty heaters.

ii)Subchronic Toxicity: This reaction occurs due to repeated exposure for several weeks or months. Example: Anemia is caused by exposure to lead for a period of several weeks at the workplace.

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