Separators or spacers are elastomeric "o-rings" specifically designed to create a space between two teeth. They are used prior to placement of a band (silver ring) around a tooth and are usually worn for 2-7 days. When separators are in place, you should not chew gum or sticky foods or play with them with your tongue or finger. Also, you should not use dental floss in these areas. If a separator does fall out on its own, it means that sufficient space has been created. If one is accidentally dislodged, it may need to be replaced so call the office during normal business hours. The photos below show what separators looks like when inserted between teeth.