Still, some 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.
- 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 possible cancer. Lasers are also used to remove lesions in the mouth and relieve the discomfort of canker sores.
- Teeth Whitening. Lasers are used to speed up in-office teeth whitening procedures. A peroxide bleaching solution, applied to the tooth’s surface, is ”activated” by laser energy, which speeds up 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 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?
Compared to the traditional dental drill, lasers:
- May cause less discomfort 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, 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.
- Laser treatment tends to be more expensive — the cost of the laser is much higher than a dental drill.