History of the use of lasers in dentistry
Laser root canal therapy has a long history. In 1960, the first ruby laser was developed and laser medicine entered a period of rapid development, and in 1963, lasers were introduced to the dental field. Today, laser technology has matured and is being used in different areas of dentistry, such as prevention of dental caries, whitening of teeth, pulpotomies and root canal treatment. For example, the prevention of dental caries, teeth whitening, pulpotomies and root canal procedures.
Features of lasers for root canal treatment
Laser for root canal preparation
After root canal preparation with conventional instruments, a layer of contaminants is left inside the tooth cavity, including pulp tissue and residual bacteria. The presence of contaminants in the tooth prevents thorough disinfection and filling of the root canal, thus increasing the risk of root canal failure. Studies have shown that after root canal preparation with conventional instruments, the dentist then uses a laser to irradiate the inner wall of the tooth cavity and the contaminants can be completely removed from the cavity wall. The laser causes the contaminants within the root canal walls to melt and recrystallize, creating a smooth lining of the mouth. Therefore, laser root canal treatment is cleaner than traditional instrument preparation during the root canal preparation phase.
Laser for root canal disinfection
Endodontic infections are mixed infections with predominantly anaerobic bacteria, which can spread to the lateral branches of the root canal during infection. The ability of the dentist to sterilize the root canal is critical to the success of root canal therapy. Traditional endodontic sealant disinfection has some sterilizing effect, but there are some shortcomings, such as the inability to sterilize completely at one time, and the tendency for bacteria to become resistant to multiple sealants. Traditional endodontic sealant disinfection often makes it difficult to thoroughly clean the root canal, and residual bacterial infection is one of the main causes of root canal failure. The laser, as a fast, reliable, safe and simple new method of root canal disinfection, can effectively solve this problem. The laser uses heat energy to remove organic matter, and the laser’s sterilizing effect on the root canal is recognized by the dental profession, as well as covering not only the root canal wall, but also the surrounding tissues such as the gums.
Laser for root canal fillings and apical closures
The laser softens the gum and fills the root canal. A laser-cured material seals the root tip better than a traditional seal. Because the laser allows for better closure of the root tip, there is a smaller wound in the mouth. Dentists using lasers for root canal treatment will be more helpful in promoting the healing of periapical inflammation.
laser used to remove root canal obstructions
During a root canal procedure, it is difficult for the dentist to remove the root canal filling material or a broken instrument. In the past, these two problems were very difficult in root canal therapy, and some medical doctors have attempted to remove the root canal filling material and fractured instruments with laser therapy with excellent results. Laser root canal therapy is considered the preferred and more reliable treatment for endodontic and periapical disease.
Advantages of lasers for root canal treatment
Appropriate doses of laser for endodontic procedures can improve efficacy and shorten the duration of the procedure and have good clinical prospects.Application of laser alone or in combination with root canal rinse agent for root canal preparation enhances the removal of contaminants.
The laser facilitates the bonding of the root canal sealant when filling and sealing the root canal.Dentists who control the laser within certain parameters can reduce damage to periapical tissue and accelerate healing. As a result, the use of lasers can make the root canal procedure simple, efficient, and safe.