An impacted tooth simply means that it is “stuck” and cannot erupt into its proper position in the mouth. Most frequently, patients develop problems with impacted third molar (wisdom) teeth. Since there is rarely a functional need for wisdom teeth, they are usually extracted if they develop problems. The maxillary canine tooth (cuspid, or upper eyetooth) is the second most commonly impacted tooth. The cuspid is a critical tooth in the dental arch and plays an important role in your “bite.” The cuspids have the longest roots of any tooth. They are the first teeth that touch when your jaws close together and guide the rest of the teeth into a functional bite.
Normally, the upper cuspids are the last of the “front” teeth to erupt into your mouth. They erupt around age 13, causing any space left between the upper front teeth to close together. If a cuspid is impacted, every effort is made to assist its eruption into the dental arch (the curving structure formed by the teeth in their normal position). Sixty percent of impacted upper canine teeth are located on the palatal (roof of the mouth) side of the dental arch. The remaining impacted cuspids are found in the middle of the supporting bone and are located above the roots of the adjacent teeth or to the outer aspect (cheek side) of the dental arch.
The American Association of Orthodontists recommends that all patients receive a panoramic screening x-ray by age seven. This x-ray will help determine whether there are potential problems with eruption of the adult teeth, if any adult teeth are missing, if extra teeth are present, or if unusual growths are blocking the eruption of teeth. The x-ray will also show if there is not enough space available for the eruption of the canines. An orthodontist routinely addresses these problems by placing braces to open spaces for the eruption of the adult teeth. Your orthodontist may refer you to us for extraction of primary teeth and/or adult teeth that are blocking the eruption of the canines. We may also be asked to remove any extra teeth or growths that are blocking eruption of any of the adult teeth. If the eruption path is cleared and the space is opened by age 11-12, the impacted canine is likely to erupt on its own. If the impacted canine develops too much before the eruption path is cleared (age 13-14), then the tooth may not erupt even though a space has been opened for it. With increasing age, there is a much greater chance that the tooth will fuse to the surrounding bone. In these cases the tooth will not move with orthodontics and may need to be removed. A dental implant is recommended to replace the missing tooth.
What Happens if the Canine Will Not Erupt?
In cases where the canine does not erupt, the orthodontist places braces on the teeth and opens a space for the impacted tooth. If the primary canine is still present, it is usually left in place until the space for the adult canine is ready. Once the space is ready, the orthodontist will refer the patient to us to have the primary tooth removed and the impacted canine surgically exposed and bracketed.
The surgical procedure involves lifting the gum that is on top of the impacted tooth to expose the hidden tooth underneath. Once the tooth is exposed, we bond an orthodontic bracket to the exposed tooth. The bracket has a miniature brass-colored chain attached to it. We then attach the chain to the orthodontic arch wire. Sometimes the exposed impacted tooth is left completely uncovered by suturing the gum around the tooth. In cases where the impacted canine is located on the roof of the mouth, a window is made in the gum covering the tooth. Most frequently the gum is returned to its original location and sutured back with only the chain remaining visible as it exits a small hole in the gum.
Within two weeks after surgery the patient returns to the orthodontist. A rubber band is attached to the chain, thereby placing a light eruptive pulling force on the impacted tooth. During the next few months the tooth slowly moves into its proper position in the dental arch. This process may take up to a full year to complete. Once the tooth is moved into its final position, the amount of gum tissue around the tooth is evaluated. In some instances, some minor gum tissue grafting is required to add more gum tissue over the relocated tooth.
This basic process can be applied to any impacted tooth in the mouth. It is not uncommon that both upper canines are impacted. In these cases, spaces are prepared on both sides of the dental arch. When the spaces are opened, we expose and bracket both teeth in the same visit. Anterior teeth (incisors and canines) are smaller and have single roots and therefore are easier to erupt than the larger, multi-rooted premolar and molar teeth. These orthodontic maneuvers are also more complicated with impacted molars due to their location in the back of the dental arch.
The surgery to expose and bracket an impacted tooth is routinely performed in our office. It is typically performed with laughing gas and local anesthesia. In selected cases it is performed under IV sedation if the patient desires to be asleep. The procedure generally takes 45 minutes to an hour depending if one tooth or both teeth are undergoing treatment. The surgery and pre-operative and post-operative instructions will be discussed in detail at your preoperative consultation with your doctor.
You can expect a limited amount of bleeding from the surgical sites after surgery. Most patients require only Tylenol or ibuprofen to manage any post-operative pain. Most pain subsides two to three days after surgery. You can minimize swelling by applying ice packs to your lip during the afternoon after surgery. A soft, bland diet is recommended at first, but you can resume a normal diet as soon as you feel comfortable chewing. You will be advised to avoid sharp food items like crackers and chips, as these will irritate the surgical site if they contact the wound during initial healing. Your surgeon may see you seven to ten days after surgery to evaluate the healing process and make sure you are maintaining good oral hygiene. You should plan to see your orthodontist within two weeks after surgery. You can always contact us if any problems arise after surgery.
Hunt Valley Medical Center • 10 Warren Road, Suite 330 Cockeysville, Maryland 21030 • Phone: 410-666-5225 • Fax: 410-666-7220
McDonogh Crossroads • 10 Crossroads Drive, Suite 200 Owings Mills, Maryland 21117 • Phone: 410-363-7780 • Fax: 410-581-9724
Upper Chesapeake Medical Center • 615 West MacPhail Road, Suite 205 Bel Air, Maryland 21014 • Phone: 410-838-7301 • Fax: 410-838-3111
The Maryland Center for Oral and Maxillofacial Surgery provides
dental implants, wisdom teeth removal, corrective jaw surgery and other oral surgery treatments
to patients throughout the greater Baltimore Maryland metropolitan area, including the communities of
Randallstown Maryland, Reisterstown Maryland, Worthington Maryland, Pikesville Maryland, Parkville Maryland and Carney Maryland.