Ergonomic dental flossing device

A dental flossing device comprising:

• a handle having
• a head portion comprising a sleeve;
• and
• a grasping portion;
• a floss holder comprising
• a base portion comprising a post protruding from said base portion;
• a pair of spaced-apart arms projecting from said base portion;
• and
• at least one length of dental floss between said spaced-apart arms,
• wherein said floss holder is rotatably-attached to said head portion, wherein said post protruding from said base portion is engaged in said sleeve in said head portion,
• wherein each spaced-apart arm comprises at least one convoluted portion along its length, and near the base portion, and
• wherein said post and base portion have a groove along at least part of their axial length, said groove being aligned in a direction generally perpendicular to the direction of said floss, and having non parallel internal faces such that said groove width is larger at its outer ends than at its center, the internal faces of said groove being adapted to enable said spaced-apart arms to move closer to each other perpendicular to the plane of the floss holder when lateral pressure is applied to the dental floss in a direction laterally perpendicular to the dental floss against a tooth.