This invention relates to an orthodontic brace that can be wore on user’s dental arch removably, for correcting the dental arch from an original contour to an objective contour which is different with the shape of original contour. The orthodontic brace has a plurality of elastic arms that contact with a lingual side or a buccal side of dental arch, a corrective contour is constructed by the elastic arms. The corrective contour is corresponding with at least one part of the objective contour and has at least one inflexion between a connected position of the two elastic arms. While wearing the orthodontic brace in the dental arch with the original contour, at least one elastic arm will be compressed or expanded by the dental arch for generating an elastic force which put the inflexion as a center point to affect the dental arch. Meanwhile, the height of the elastic arms would not over the height of an occlusal surface in the dental arch to prevent saliva from being deposited in the orthodontic brace, and solve other problems due to the thickness of brace in the occlusal surface.本發明矯正牙套，可組卸的裝設於使用者的牙弓，將牙弓由一原始輪廓矯正成一不同於原始輪廓的形狀的目標輪廓，該矯正牙套包含複數與牙弓的舌側或頰側接觸的彈臂，複數彈臂相互連接構造成一矯正輪廓，該矯正輪廓符合目標輪廓的至少一部分，並具有至少一位於兩彈臂連接位置的轉折處，使矯正牙套安裝至具有原始輪廓的牙弓時，至少一彈臂將會受到牙弓的擠壓或撐張，進而以轉折處作為支點產生作用於牙弓的彈性力；其中，彈臂不會超過牙弓的一咬合面高度，以防止口水堆積於牙套中，並解決過去因咬合面處的牙套厚度而衍生的其他問題。
