space by adding bends to the rectangular arch-wire, one of its disadvantages. The wire was held in the slot by metal ligature. In this appliance, the slot was changed from vertically to horizontally. Therefore, the bracket was wide mesio-distally and its slot size was .022 x .028 inch. These brackets were initially referred to as "open face" or "tie brackets". The edgewise bracket has been later modified to Single Width Bracket, Siamese Bracket, Lewis Bracket, Steiner Bracket, Broussard Bracket. Death Angle died on August 11 1930 in Santa Monica at the age of 75 from heart failure saying, “I have finished my work and I did my best.” He was buried in Mountain View Cemetery in Altadena, California. See also Angle school of orthodontia The Angle Orthodontist Calvin Case References 1855 births 1930 deaths American dentists American dentistry academics Orthodontists