Due to the gentle nature of the wire, round stranded wires are traditionally used in early treatment to correct misaligned teeth.
Stranded wires apply a low force level over a given span with minor to moderate deformation depending on the severity of the malocclusion.
Rectangular stranded wires are typically used in transitional applications to align and detail occlusions effectively with com paratively lower force than solid stainless steel archwires.

.0175 Seven Strand is the most popular wire for bonded lingual retainers.