The Delta Force® Bracket System incorporates a unique design that allows the orthodontic practitioner the ability to control the friction between the archwire, bracket and elastic ligature. The doctor can more fully control his method of sliding mechanics by varying the placement of the ligature. Friction can be increased or decreased to facilitate the doctors treatment plan.The Delta Force® Bracket System incorporates a unique design that allows the orthodontic practitioner the ability to control the friction between the archwire, bracket and elastic ligature. The doctor can more fully control his method of sliding mechanics by varying the placement of the ligature. Friction can be increased or decreased to facilitate the doctors treatment plan.