A floss arm in a generally cylindrical configuration has a distal end, a proximal end, and an exterior surface there between. The distal end is formed with a distal recess. A replaceable flosser has a central base and two outwardly extending legs. The outwardly extending legs have free ends. A piece of floss is secured between the free ends. The central base is removably received in the distal recess. A floss guard is formed with a center attached to the distal end of the floss arm. A plurality of short arms extend from the center to limit the depth of penetration of the floss. Two laterally spaced long legs extend from the center and span the plurality of short legs to define a central zone for optimal flossing.