Laser is good for small cavities.  The dentist really has to be good or you can have injury.  It is not used for removing metal fillings. 

Hal Huggins says:

Why should I not have a ROOT CANAL done?

Root canals are recommended when a tooth has been fractured, or when decay has entered the nerve chamber and created much pain. Often the body calcifies the tooth membranes, and allows it to remain. Unusual as it sounds, the body does not like dead structures in it, and a healthy body will try to reject it. Pain requiring antibiotics and pain pills are frequently used until the immune system stops working in that area. Root canals produce toxins that can increase or create many autoimmune diseases.

Is laser treatment for cleaning of root canals and cavitations considered a safe treatment?

In both root canal sockets and cavitation linings, the big concern is the anaerobic bacteria. These are ones that live in the absence of oxygen. Botulism and gangrene are examples of anaerobic bacterial action. Bad bugs. If laser can kill all the bacteria, who is going to remove the dead bacteria, or the dead bone lining the sockets? There is no blood supply here. Laser only kills, does not clean debris. Other techniques are required to leave a clean area that can fill in with bone and new blood vessels.

Jerome, Frank, D.D.S. says:

There is no way to disinfect a root canal. No matter how clean the area is or how free of bacteria, there are always bacteria in the tubules and they will grow. And, the more antibiotics taken or applied, the more antibiotic resistant, and stronger, they will become.

Root canals are the most toxic most damaging procedure dentists can do. You have two options: a root canal or an extraction. Dentists usually fill root canals with gutta percha. Some use the Sargenti method, a popular treatment used by 25% of dentists, but denounced by the American Dental Association because it contains formaldehyde compounds. There have been a lot of problems with those. They used to contain lead. The current formulas are said to have removed the lead, but millions of root canal treatments using the old formulas are still in people's mouths. Gutta percha is 15% barium so that it will show up in the X-ray. Gutta percha shrinks and leaves gaps and the tooth can never be sterile. There is no such thing as a sterile root canal. During a root canal, the main canal is filled and possibly some of the small side canals, but the other smaller canal-like structures in teeth called dentinal tubules are too tiny to be filled during treatment and these tubules become home to bacteria instead. Since there are millions of these tubules there is room for enough bacteria to challenge the immune system. The waste products from these nasty germs include some very toxic substances called thio-ethers, and your body has to deal with these toxins 24 hours a day. They contaminate the bone around the tooth and they are picked up by the immune system and carried to the liver for detoxification. Unfortunately, the liver can be seriously damaged by them. Weston Price conducted research on root canals and wrote two books about how toxic they can be. So you have to make up your mind what is more important to you. I believe no tooth is worth destroying my immune system. by Jerome, Frank, D.D.S. (812) 376-8525, Columbus Indiana, Author of "Tooth Truth"

Torrie