Orthodontic separators (commonly known as spacers) are rubber bands or metal appliances used in orthodontics. Spacers are placed between the molars at the second orthodontic appointment, before molar bands are applied. Spacers are either circular rubber bands about a centimeter in diameter placed between top and bottom molars; there may be 1 - 12 spacers applied or small metal spring clips (spring separators) that push the molars apart. The spacers stay between the teeth for one to two weeks and move the teeth apart slowly until they are far apart enough so that orthodontists can fit a tooth brace or molar band in between them or fit an expander with rubber rings.
how long do spacers have to stay in
one to two weeks