Which type of local anesthetic administration technique involves depositing the anaesthetic solution beneath the mucous membrane and over the alveolar bone to anaesthetize the local nerve endings?

Infiltration is a technique where the local anesthetic solution is deposited beneath the mucous membrane and above the alveolar bone. This method primarily targets the local nerve endings present in the area, providing effective anesthesia for smaller dental procedures. It works well for procedures involving the anterior teeth and is particularly useful in cases where a less invasive approach is warranted. The anesthetic spreads through the soft tissue to reach the nerve endings, which leads to a localized numbing effect.

In contrast, other techniques such as intra-ligamentary and intra-osseous involve different approaches to anesthesia delivery. Intra-ligamentary administration targets the periodontal ligament directly, which can provide profound anesthesia but does not involve depositing the solution beneath the mucosa in the same manner as infiltration. Intra-osseous techniques involve depositing anesthetic directly into the bone, which can be effective but is not the same as the infiltrative approach. Additionally, nerve block techniques involve targeting specific nerves at a distance from the procedure site and are typically used for larger areas, such as the molars, rather than a localized approach like infiltration. Thus, infiltration stands out as the technique that specifically involves depositing the anesthetic solution beneath the mucous membrane and above the alveolar bone for local