__________ bleaching in a nonvital tooth is a thick mixture of bleaching agent placed in the crown of the tooth, covered with temporary cement, and reappointed in 2 to 5 days

a. Gel
b. Walking
c. Power
d. Assisted


b
RATIONALE: Walking bleaching in a nonvital tooth is a thick mixture of bleaching agent placed in the crown of the tooth, covered with temporary cement, and reappointed in 2 to 5 days.

Health Professions

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