Depending on the position of the missing tooth and the condition of the surrounding teeth, the pediatric dentist may adhere a “band and loop,” a “crown and loop,” or a “distal shoe” type of spacer to fill the empty gap. All spacers fulfill the same function; just the nature of the attachment to the adjacent teeth differs. Fixed spacers are usually made of metal and are highly durable. If a highly visible tooth is missing, an acrylic button may be added to reduce the esthetic impact.