Once a tooth is numb, the child should not experience any further discomfort. However, there are a lot of sights and sounds that can unnerve a child into thinking that what is happening is painful. Since a drill has to be used to clean out the decay and shape the inside of the tooth to hold a filling, the chatter of the drill’s bur, the water spray, and the high pitch sound can startle some children. At our office, we show the patient every step that we are about to take before we do it. For example, we take the high speed handpiece and hold their hand up to it and let them feel the water spray. We tell them that the water spray is going to clean out all the cavity bugs. With their fears allayed, most children will be still while the cavity is being drilled out. We tell them that the water spray will tickle their teeth, so the vibration of the drill is well tolerated. Taking the extra time to demonstrate what’s going to happen is well rewarded with a calm, cooperative child.