FIG. 1 is a front elevational view of a dental floss holder showing a first embodiment of our design;

FIG. 2 is a right side elevational view thereof;

FIG. 3 is a left side elevational view thereof;

FIG. 4 is a rear elevational view thereof;

FIG. 5 is a top plan view thereof;

FIG. 6 is a bottom plan view thereof;

FIG. 7 is a front elevational view of a dental floss holder showing a second embodiment of our design;

FIG. 8 is a right side elevational view thereof;

FIG. 9 is a left side elevational view thereof;

FIG. 10 is a rear elevational view thereof;

FIG. 11 is a top plan view thereof; and,

FIG. 12 is a bottom plan view thereof.