Multiple choice

Which is the most frequent complication associated with local anesthesia in the dental office?

  1. Anaphylactic shock

  2. Syncope

  3. Asthama

  4. Headache
Reveal answer Fill a bubble to check yourself
B Correct answer
Explanation

When the patient is sitting in the dental chair, the brain is placed in a superior position and is the most susceptible to the reduced blood volume flow resulting in syncope. This is a form of neurogenic shock and is caused by cerebral ischemia secondary to vasodilation with a corresponding drop in blood pressure.

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