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Annie Smith is a 130-pound, 50 year old female with a 9 mm pocket on the distolingual of #18. You anesthetize her with one carpule of Lidocaine 1:100,000 using the inferior alveolar injection. After several minutes, Annie’s tongue and lower lip are not anesthetized. The left corner of Ann’s upper lip is drooping and she is not able to close her left eye. You have determined the cause of this complication. What is the proper technique to prevent the above symptoms?

Lidocaine 2% 1:50,000 represents ________________ the amount of ___________________. PICK TWO CORRECT ANSWERS, ONE FOR EACH BLANK.

You are administering the long buccal nerve block injection. As you begin depositing, the anesthetic solution runs out of the lumen of the needle and out of the tissue. What should you do to correct this problem?

What is the advantage of using a 25 gauge needle rather than a 30 gauge needle?

If you administer a total of 4 cartridges of Carbocaine 2%. How many mg. did you administer?

Benzocaine is an amide.

A patient complains of sensitivity to heat, cold, and pressure. Examination of the radiograph reveals a radiolucency indicating an infection directly around the apex of tooth #2. Which injection(s) is/are likely to provide the most profound anesthesia for a root canal on tooth #2?

What does the presence of small (1-2 mm) bubbles in the cartridge usually indicate?

Mrs. Ferrari arrives 20 minutes late for her appointment. You reviewed her medical history and note no significant findings except she is very anxious. Her pulse is 80 beats/min. but vital signs are within normal limits. She is scheduled for root planing on tooth #2 and #30. You administer the injections to anesthetize both teeth. A few minutes later she seems nervous, complains of dizziness, faintness, weakness and nausea. Which of the following conditions has most likely occurred?

When a local anesthetic containing epinephrine is mistakenly injected into a blood vessel, the patient may initially demonstrate which of the following?