Periodontics: Uses of Periodontic Dental Lasers
Since their introduction in the 1960's, laser use in medicine and dentistry has increased steadily, and it's been no different in Periodontics. The CO2 and the Nd:YAG lasers have both received Food and Drug Administration (FDA) approval for soft tissue surgery and are the most commonly used lasers in dentistry. A dental laser work by delivering concentrated beams of light strong enough to cut through tissue.
Pros & Cons of Dental Lasers
The popularity of lasers results from claims that dental laser gum treatment is painless. Although the FDA has not permitted the manufacturer of any laser to make that claim, the general experience described by patients is that there is less pain and swelling after laser treatment compared to conventional oral surgery. Local anesthesia for pain control is still required during laser surgery.
Another advantage of the laser is that it causes less bleeding in the area of surgery than traditional oral surgery techniques. This is especially helpful in the oral cavity, which has an abundant blood supply. The laser decreases bleeding by sealing the blood vessels at the surgical wound. On the flip side, this can delay healing and create a less stable wound.
Application of Lasers in Periodontal Treatment
The application of lasers in periodontal treatment is restricted to the removal of gum tissue to reduce pocket depth, or for some minor periodontal plastic surgery procedures. These surgeries can be easily performed with traditional instruments without the additional high cost of dental laser treatment.
More recently, lasers have been evaluated for use in scaling and root planing. But in a research study recently published in the Journal of Periodontology, laser therapy appeared to be less effective than traditional scaling and root planing treatment. In fact, research has not conclusively shown that laser therapy is effective in removing the tartar that has accumulated under the gum line and can actually damage the surfaces of teeth and the bone. This damage could delay healing and the ability of the gum tissue to reattach to the root surface.
For all these reasons, the American Academy of Periodontology is concerned about misleading claims regarding the use of lasers in periodontics. It is important to remember that laser treatment in periodontics is limited to soft tissue (gum) for periodontal surgery and that the laser beam should not touch the tooth or bone. Anesthesia is required during dental laser treatment, and dental laser treatment may be more expensive than traditional surgical procedures.
By Laura Minsk, DMD
Increasing Gum Around a Tooth with Soft Tissue Grafts
If an individual has gum recession as a result of periodontal disease, or has thin gums that need to be augmented before dental procedures, their dentist may recommend a soft tissue (gum) graft. The purpose of the gum graft is to cover exposed root surfaces and to increase the amount of gum around a tooth. It can be done to improve the esthetics of the gum line, prevent further recession, as preparation for other dental procedures (restorations or orthodontics), or to protect the tooth from root sensitivity and cavities.
A graft is the transplantation of living tissue from one part of the body to another. In the case of a gum graft, the tissue is usually taken from the roof of the mouth and placed on the exposed root surface. In some instances, it may be possible to move gum tissue from a site right next to the root surface or to use tissue donated from a different source. One or several teeth can be treated simultaneously.
Gum grafts have been done since the 1960's with exceptional success. The techniques have changed since then, making the procedures even more predictable, comfortable, and esthetic. Today it is possible to match the texture and color of the gum tissue with minimal scarring.
What to Expect from Periodontal Gum Grafts
Soft tissue (gum) grafts are done in the dentist's office with local anesthesia (lidocaine). After obtaining the donor tissue, it is secured on the recipient site with stitches (sutures) or tissue glue. The donor site (usually the roof of the mouth) may also require stitching, bandages, or tissue glue. Post-surgical discomfort is usually minimal and can be easily managed with commonly available over-the-counter medications such as aspirin, acetaminophen, or ibuprofen. Patients can expect to follow their normal routine the day after oral surgery. The dentist will provide special instructions related to diet, exercise, and medications.
The stitches are usually removed five to ten days after the surgery. Follow-up appointments are scheduled as necessary to evaluate healing and plaque control.
Benefits of Gum Grafts
Soft tissue (gum) grafts are beneficial to help reduce further gum recession and bone loss as well as to help protect the root surface from decay and sensitivity. In addition, a dentist should be consulted about gum grafting procedures if individuals have exposed root surfaces or long-looking teeth that create a cosmetic problem. If a general dentist does not frequently perform soft tissue grafts, he or she may refer the patient to a periodontist who specializes in this technique.
By Laura Minsk, DMD