It is common and perfectly normal to have some degree of apprehension or anxiety prior to receiving dental treatment. Some people however, have stronger feeling in this regard than others. These feelings may have been produced by a less than pleasant past experience, stories told by family or friends, or by the nature of the dental procedure itself. Dental treatment may be especially frightening to young children and patients with developmental disabilities.
Whatever the cause, apprehension or anxiety , can produce many unpleasant effects including heart palpitations, high blood pressure, upset stomach and trouble sleeping the night before the appointment. Many highly apprehensive patients avoid dental care for many years until their problems become so severe that they are forced to seek emergency care.
Sedation and anesthesia can make practically all dental and oral surgery procedures more pleasant and safer for the apprehensive patient.
American Dental Society of Anesthesiology