Every patient’s body responds a little differently to local anesthetics. The time for the numb feeling to disappear depends on your body and the amount of anesthetic needed to numb you during your procedure. Typically, sensations begin to return a couple of hours after treatment. For many procedures, though, we can use a computer-assisted device called “The Wand” to numb teeth; this is much more comfortable than traditional numbing, allows us to get a smaller area of the mouth, or to a single tooth to numb, and also tends to wear off much more quickly than traditional numbing.