1
Dental Hygiene Local Anesthesia Questions and Answers Latest Version 100% Pass
What is the primary purpose of local anesthesia in dental hygiene procedures?✔✔To numb the area being treated and reduce patient discomfort.
Which nerve is typically anesthetized during a routine dental cleaning?✔✔The inferior alveolar nerve.
What is the common dosage for lidocaine in a dental procedure?✔✔The usual dosage is 1-2 carpules (1.8 mL each) depending on patient needs.
What is the function of the vasoconstrictor added to local anesthetics?✔✔To constrict blood vessels, prolong the effect of anesthesia, and reduce bleeding at the treatment site.
What is the maximum recommended dose of epinephrine for a healthy adult during dental procedures? 1 / 3
2
✔✔0.2 mg of epinephrine.
How should the needle be positioned when performing an injection for local anesthesia?✔✔The needle should be inserted at a 45-degree angle to the mucosa and directed toward the target nerve.
What is the typical duration of effect for lidocaine with epinephrine?✔✔Typically 60-90 minutes for soft tissue anesthesia, depending on the location.
What technique is used to prevent the patient from feeling pain when the anesthetic needle is inserted?✔✔The technique is called “buffering,” where the needle is introduced slowly and the tissue is gradually numbed.
What is the difference between a topical anesthetic and a local anesthetic?✔✔Topical anesthetics are applied to the surface of the tissue to numb only the outer layer, whereas local anesthetics are injected into deeper tissues to numb a larger area.
What is the purpose of aspirating the syringe during the injection process? 2 / 3
3
✔✔To check for blood vessels in the area, ensuring the needle is not in a blood vessel before administering the anesthetic.
What are the common side effects of local anesthesia?✔✔Side effects may include numbness, tingling, or temporary swelling in the treated area.
What is the most common local anesthetic used in dental hygiene procedures?✔✔Lidocaine.
What precaution should be taken when injecting local anesthesia into a patient with a history of allergies?✔✔A thorough review of the patient’s medical history is essential to ensure no allergic reactions to the anesthetic or its components.
What is the most commonly used site for a mandibular block injection?✔✔The area near the ramus of the mandible, just below the mandibular foramen.
How can the risk of post-injection trauma be minimized?
- / 3