Question

In order for an infiltration to anesthetize the teeth pulp, the solution deposition site should be:

a. at the height of the apex of the root
b. midpoint on the root
c. at the mucobuccal fold
d. at the interdental papilla

Answer 1

To effectively anesthetize the tooth pulp, the anesthetic solution should be deposited at the mucobuccal fold. This location allows the anesthesia to reach the nerves supplying the tooth roots for dental procedures.

Step-by-step explanation:

For an infiltration to anesthetize the tooth pulp effectively, the anesthetic solution should be deposited at the mucobuccal fold. The mucobuccal fold is an area where the mucous membrane of the cheek meets the gingiva near the roots of the teeth. Injecting the anesthetic at this site ensures that the solution permeates the areas surrounding the roots of the teeth where the nerve supplies are located. This technique targets the nerves before they enter the tooth, thus numbing the area necessary for dental procedures.

The tooth consists of a crown and root, with the pulp cavity housing nerves and blood vessels running through the root canal. The tooth is surrounded by alveolar bone, periodontal ligaments, and gum tissue. To prevent sensation during dental work, anesthesia needs to effectively reach the nerve supply adjacent to the roots. Injecting directly at the height of the apex or at the interdental papilla would not provide the broad numbing effect needed for pain-free dental procedures.