A non-sterile device intended to be used during orthodontic treatment to function as an archwire/bracket ligature on several adjacent teeth and/or to exert a continuous light force to close the spaces between the teeth. It is also known as a power chain and is in the form of a series of connected loops made of an elastomeric material (e.g., polyurethane, rubber). This is a single-patient device intended to be replaced regularly during orthodontic treatment (single-use).

A thin metal ring designed to be fitted around the contours of a tooth and cemented into place to support an orthodontic attachment (e.g., bracket, tube), brazed or soldered onto the ring, intended to be secured to the tooth. This is a single-patient device intended to be used for the duration of the treatment (single-use) before being discarded.

A device used in orthodontics to attach a wire(s) or headgear to orthodontic bands bonded to the teeth. It is typically welded to an orthodontic band or bonded to a tooth. This is a single-patient device that is used for the duration of the treatment (single-use) before being discarded.