One appointment patient will receive local anesthetic dental injection with the DentalVibe turned on and at one appointment the child will receive local anesthetic dental injection with the DentalVibe off. Used strictly as a check/lip retractor. The child will be randomly assigned via a random number generator to either the DentalVibe on or off during the initial appointment. During the DentalVibe turned on appointment, the DentalVibe will be introduced to each child to make him/her familiar with the vibration sensation.