1.
Brackets are the attachments which are bonded onto the centre of each tooth to provide a point of force application to move teeth.
2.
Archwires are engaged into each bracket to deliver an orthodontic force to move teeth. There are various dimensions, shapes and alloys of archwires, each with particular properties designed for different stages of orthodontic treatment.
3.
Ligatures are used to hold the archwire into each bracket. They are also known as modules or O-rings.