Effects of audiovisual distraction during dental prophylaxis

Background. Fear and anxiety often inhibit patients from seeking dental care. Audiovisual, or AN, distraction techniques have been shown to reduce patient anxiety and pain during dental procedures. The authors investigated the effects of a virtual image AN eyeglass system on patients' anxiety and pain. Methods. Twenty-seven routine dental prophylaxis patients participated and completed the Dental Fear Survey and the Fear of Pain Questionnaire-III before treatment. In random order, the clinician scaled and, polished two quadrants in subjects while they watched and listened to a standard video using the AN eyeglasses and two quadrants while they did not. A posttreatment questionnaire was administered to both the patient and the clinician. Results. Subjects reported less anxiety and discomfort when using the AN eyeglass system than when they did not. Most subjects preferred to use the AN equipment rather than receive traditional treatment. The clinician experienced no significant technical interference during the use of the AN device. The use of the AN eyeglasses led to decreased treatment time in the first one-half of the procedure. The system appeared to lead to some decreases in the physiological parameters over the course of treatment, with the highest systolic blood pressure occurring after the condition with no use of AN eyeglasses. Conclusions. A virtual image AN system is beneficial in the reduction of fear, pain and procedure time for most dental prophylaxis patients. Clinical Implications. Use of screening questionnaires may be helpful for identifying anxious patients. An AN device may be beneficial to the clinician and the mildly or moderately anxious patient.