Quiz 11: Applied Anatomy
C Explanation: Nerve block. Large areas and several teeth may be anesthetized by blocking a main nerve through the deposition of the anesthetic solution adjacent to a main nerve. Local infiltration is used to numb a single tooth or a small area.
D Explanation: The mouth of the incisive canal immediately posterior to the central incisor teeth. The injection site for a nasopalatine block is the mouth of the incisive canal. The other injection sites mentioned here are for other types of blocks.
A Explanation: Nerve block. The labial and buccal plates of bone of the mandible are relatively thick and preclude successful local infiltration. In general, nerve blocks are used to anesthetize mandibular dentition.