DANB General Chairside Practice Test

What type of anesthesia is accomplished by injecting the anesthetic solution directly into the tissue?

1. Infiltration anesthesia

2. General anesthesia

3. Topical anesthesia

4. Regional anesthesia

The correct answer is: Infiltration anesthesia

Infiltration anesthesia is achieved by injecting the anesthetic solution directly into the tissue where the procedure will take place. This method allows the anesthetic to diffuse into the surrounding area and block nerve impulses, thereby providing a localized numbing effect. It is commonly used in dental procedures to minimize pain during treatments in specific areas, such as a tooth or a small section of the gum. The other options involve different techniques or scopes of anesthesia. General anesthesia induces a state of unconsciousness and is administered systemically, often for more extensive surgical procedures. Topical anesthesia involves applying anesthetic directly onto the mucous membrane or skin to numb the surface area without the need for injections. Regional anesthesia involves blocking sensation to a larger area of the body, such as a limb or half of the face, typically through nerve blocks rather than direct tissue injection. Infiltration anesthesia provides precise control for localized procedures, making it essential for many dental applications.