There Is a substantial increase of esthetic archwires and brackets in the market as compared with mid-nineties. three Esthetic archwires are of two varieties: they may be either coated or composite. Nitinol alloys exhibit two closely linked and exceptional properties: the shape memory impact and superelasticity (also known as pseudoelasticity). https://directory-cube.com/listings13099783/the-round-niti-wires-diaries