What type of injection most efficiently provides hemostasis?

The infiltration technique most efficiently provides hemostasis because it involves injecting a local anesthetic directly into the area where bleeding is occurring, leading to localized vasoconstriction. When local anesthetics are infiltrated directly into the tissue, they not only block pain but also cause the surrounding blood vessels to constrict, reducing blood flow and promoting hemostasis.

In contrast, while nerve blocks and field blocks can create anesthesia over a larger area by targeting nerve pathways, they are not designed specifically to control bleeding at the site of injection. Nerve blocks can provide profound anesthesia but may not address bleeding as effectively. Field blocks may encompass a broader area but still do not directly impact the immediate area of hemostasis compared to infiltration, making infiltration the preferred method for achieving quick and effective hemostasis in dental or surgical procedures.