The ornamental design for a dentalflossingdevice, as shown and described.
FIG. 1 is a perspective view of a dental flossing device, showing my new design;
FIG. 2 is a front side elevational view thereof, the rear side being a mirror image;
FIG. 3 is a right side elevational view thereof, the left side being a mirror image;
FIG. 4 is a top plan view thereof;
FIG. 5 is a bottom plan view thereof;
FIG. 6 is an exemplary diagram showing the nature and environment of use for the dental flossing device in accordance with the present invention; and,
FIG. 7 is an exemplary diagram showing the nature and environment of use for the dental flossing device in accordance with the present invention.
Broken lines, within the claimed design, are for illustrative purposes only and form no part of the claimed design. Although FIGS. 6 and 7 illustrate, by way of example, the nature and environment of use when two dental flossing devices of the claimed design are used together, it should be understood that the claimed design resides in a single dental flossing device. Thus, the claimed design does not require two units as shown in the environment illustrations of FIGS. 6, and 7. The broken lines in FIGS. 6 and 7, representing hands, fingers and dental floss are also for illustrative purposes only and form no part of the claimed design.