Endodontic drills and reamers include gates glidden drills and peeso reamers which are used to shape the orifices and top sections of the canals above the first curvature. These instruments can be machine driven or hand files, and should feature specially designed cutting tips that are most commonly football shaped with a smooth shaft behind the tip. Finding endodontic drills and reamers that are effective and comfortable for you to use, can be a key to successful endodontic treatments.