Abstract: During the treatment of teeth by a dentist or dental specialist the patient's head rests on a headrest. The position of the head towards the caretaker, as well as the comfort of the patient, are very important for a successful treatment. Such comfort is often prevented due to hairstyling that is not accommodated by the design of the headrest. Certain embodiments of the invention a U-shaped headrest that allows for comfortable resting of a patient's head on the headrest. The U-shape may be subject to a variety of mechanical changes, for example, making an opening bigger or smaller, or changes in the angle of the headrest itself so that it better fits the counter of a patient's head. Such changes may be made through manual, pneumatic, or electrical control, or combinations thereof.

Abstract: A headrest for a dental chair that provides both the desirable support to a patient's head as well as avoiding damage to hairstyling is disclosed. The invention provides a U-shaped headrest that allows for comfortable resting of a patient's head on the headrest. The U-shape may be subject to a variety of mechanical changes, for example, making an opening bigger or. smaller, or changes in the angle of the headrest itself so that it better fits the counter of a patient's head. Such changes may be made through manual, pneumatic, or electrical control, or combinations thereof.

Abstract: An apparatus and a concomitant method for promoting hygienic practices is disclosed. The apparatus is a monitoring unit for monitoring the completion of a desired action, e.g., handwashing, by a user. Upon completion of the desired action, the monitoring unit transmits a satisfactory signal to the user.