The modern approach to dental anesthesia. The Wand STA performs traditional techniques, such as blocks and infiltrations, more comfortably for both patient and provider and enables new techniques that increase comfort and eliminate ‘‘numb face’’ for the patient. The STA technique provides profound single-tooth anesthesia for every procedure, including extractions, with no collateral anesthesia. The AMSA and P-ASA techniques provide profound anesthesia in the aesthetic zone without collateral numbness, enabling immediate ‘‘smile line’’ assessment.