Which of the following is (are) true about topical anesthetics?
A) Topical anesthetics are most effective when placed on dry tissue for 1 to 2 minutes.
B) When applied properly,topical anesthetics can penetrate 2 mm into the tissue.
C) Topical anesthetics have very limited effect on keratinized tissue,such as the palate.
D) All of the above are true.
E) Both A and C are true.
Correct Answer:
Verified
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