Various embodiments of an orthodontic appliance and method for forming such appliance are disclosed. The appliance can include a first anchor and a second anchor each including an anchor coupling and a base adapted to connect the respective anchor to a surface of a first tooth and a second tooth respectively. The appliance can also include an arch member including an arch member body and first and second arch member couplings integral with the body, the arch member body including a cross-sectional geometry that varies along a length of the body. The first arch member coupling can be releasably connectable to the anchor coupling of the first anchor and the second arch member coupling can be releasably connectable to the anchor coupling of the second anchor. The arch member body can include a first nonlinear portion between the first arch member coupling and the second arch member coupling.
