Local Anaesthesia and Pain Management · CDA

Which factor increases the likelihood of trismus after anesthesia?

  1. Slow injection
  2. Using a new needle
  3. Repeated needle penetrations
  4. Injection without vasoconstrictor
Show answer and explanation

Correct answer: Repeated needle penetrations

Multiple needle passes increase tissue trauma, leading to trismus. Proper technique reduces this risk.

Difficulty: Medium Question 13 of 20

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