An IC card which can normally perform the next data communication processing if there is an abnormality in data communication is provided. The upper cutting plates located near the inlet at the top of the hammermill has a double radiused profile which increases the steepness of the angle between the hammer and the upper radiused segment of the cutting plate. The panel system of the invention provides a cost effective means of changing the look of cabinetry that is easy to implement and results in little wastage of materials. The user utilizes the dental floss strand portion of the dental floss to floss the healthy sides of the teeth and flosses the periodontitis afflicted areas of the mouth with the medicinal member portion of the dental floss.