Glossary of Orthodontic Terms Orthodontic Terms Appliance Appliance Anything Dr. Koen attach to your teeth to move them or change the dimension of your jaw. (Examples: brackets, expander, etc.) Archwire Archwire A metal wire which is attached to your brackets to move your teeth. Band Band A metal tooth ring with a bracket attached to it which is attached to your archwires to move your teeth. Bracket Bracket A metal or ceramic brace that is bonded to a tooth and serves as a special “tooth handle” to which is fastened the archwire. Kobi Tie/Hook Kobi Tie/Hook A special metal hook tied to an individual bracket to be used for hooking elastics up by the patient. Mouthguard Mouthguard A rubber mouthpiece is worn to protect teeth during athletic pursuits. Power Chain Power Chain A stretchable elastic chain used to close spaces, rotate teeth, or hold archwire into brackets. Power Ties Power Ties Elastomeric ties that hold an orthodontic wire to an individual bracket. Retainer Retainer A device is worn to hold orthodontic correction following the removal of orthodontic appliances. These can be worn full or part-time; be removable or bonded; be fabricated of a number of materials. Rubberbands Rubber Bands Elastomeric removable band of varying sizes and strengths worn by most orthodontic patients to move teeth. Spacers Spacers A small, thick, radiolucent, rubber band placed by an orthodontic assistant between teeth for a period of one week to create space for an orthodontic band.