The ornamental design for a straightinterproximaldentaltool with sandpaper on one side and sharp razor blade edge, as shown and described.
FIG. 1 is a top, front, right side perspective view of the straight interproximal dental tool with sandpaper on one side and sharp razor blade edge, showing my new design;
FIG. 2 is a bottom, rear, left side perspective view thereof;
File for working on the interproximal space in orthodontics as well as in conservative treatments and prophylaxis of teeth and relative device able to see connected to an oscillating handpiece