Lasers have been used in dentistry since 1994 to treat a number of dental problems.

Dentists are using lasers to treat:

• Tooth decay. Lasers are used to remove decay within a tooth and prepare the surrounding enamel for receipt of the filling. Lasers are also used to "cure" or harden a filling.
• Gum disease. Lasers are used to reshape gums and remove bacteria during root canal procedures.
• Biopsy or lesion removal. Lasers can be used to remove a small piece of tissue (called a biopsy) so that it can be examined for cancer. Lasers are also used to remove lesions in the mouth and relieve the pain of canker sores.
• Teeth whitening. Lasers are used to speed up in-office teeth whitening procedures. A peroxide bleaching solution, applied to the tooth surface, is ''activated" by laser energy,which speeds up of the whitening process.

How Do Lasers Work in Dentistry?

All lasers work by delivering energy in the form of light. When used for surgical and dental procedures, the laser acts as a cutting instrument or a vaporizer of tissue that it comes in contact with. When used for "curing" a filling, the laser helps to strengthen the bond between the filling and the tooth. When used in teeth-whitening procedures, the laser acts as a heat source and enhances the effect of tooth-bleaching agents.



What Are the Pros and Cons of Using a Laser in Dentistry?

Pros Compared to the traditional dental drill, lasers:

• May cause less pain in some instances, so reduces the need for anesthesia
• May reduce anxiety in patients uncomfortable with the use of the dental drill
• Minimize bleeding and swelling during soft tissue treatments
• May preserve more healthy tooth during cavity removal

The disadvantages of lasers are that:

• Lasers can't be used on teeth with fillings already in place.
• Lasers can't be used in many commonly performed dental procedures. For example, lasers can't be used to fill cavities located between teeth, around old fillings, and large cavities that need to be prepared for a crown. In addition, lasers cannot be used to remove defective crowns or silver fillings, or prepare teeth for bridges.
• Traditional drills may still be needed to shape the filling, adjust the bite, and polish the filling even when a laser is used.
• Lasers do not eliminate the need for anesthesia.

How are lasers used in dentistry?

Dental lasers can be used to:

• reduce the discomfort of canker and cold sores.
• expose partially erupted wisdom teeth.
• remove muscle attachments that limit proper movement.
• manage gum tissue during impressions for crowns or other procedures.
• remove overgrown tissues caused by certain medications.
• perform biopsy procedures.
• remove inflamed gum tissues and aid in the treatment of gum disease.
• remove or reshape gum and bone tissues during crown lengthening procedures.
• help treat infections in root canals.
• speed up tooth whitening procedures.

What are the benefits of using dental lasers?

There are several advantages. Dentists may not need to use a drill or administer anesthesia in some procedures, allowing the patient to enjoy a more relaxed dental experience. Laser procedures can be more precise. Also, lasers can reduce symptoms and healing times associated with traditional therapies; reduce the amount of bacteria in both diseased gum tissue and in tooth cavities; and control bleeding during surgery.

Are dental lasers safe?

If the dental laser is used according to accepted practices by a trained practitioner, then it is at least as safe as other dental instruments. However, just as you wear sunglasses to protect your eyes from prolonged exposure to the sun, when your dentist performs a laser procedure, you will be asked to wear special eyeglasses to protect your eyes from the laser.