I can personally testify, following a 35 year old old root canal extraction my health vastly improved. Wish I’d known about these years ago, I never would have had one. EWR.

From Dr Mercola

Root canals are one of the most common and widespread dental procedures on the planet. Statistics presented by the American Association of Endodontists show that at least 15 million root canals are performed every year. That’s roughly 41,000 a day.   With these numbers, this procedure may seem routine or even harmless, but the root canal involves a number of health risks.

Root Canals Raise Red Flags for Your Health

Root canals can be detrimental to your health because the teeth affected have the potential to be “incubators” for toxic anaerobic bacteria, which can go into your bloodstream and cause severe medical conditions. What’s worse, you may not be able to detect these until years later.

How do these health risks make their way to your body? The answer lies in the way the procedure is carried out. In root canals, the dentist hollows out the tooth in question, then fills the empty chamber with a tough, plastic substance called gutta-percha, which comes from the latex of trees. It resembles rubber and is used for insulation and other dental procedures.  This cuts the tooth off from its blood supply and no fluids are able to circulate through the tooth.

The problems begin here as the middle portion of each tooth is home to the pulp chamber where blood vessels and nerves are. These portions are surrounded by two hard layers, namely the dentin and the white enamel. These have roots that descend into your jawbone and are held in place by the periodontal ligament.

Dental schools usually teach their students that there are one to four major canals connected to each tooth. In reality, however, there can be more. In these passageways, microscopic organisms can move about, and it’s where they can turn into harmful bacteria and hide from antibiotics and your body’s immune defenses.

These dangerous, virus-loaded organisms  can produce toxins, waiting for an opportunity to spread after hiding in the canals where no amount of sterilization has been proven effective on them.

Every single root-canaled tooth houses these bacteria around the apex and in the periodontal ligament. They may extend to the jawbone where they can cause cavitations, areas of unhealed bone often with infected tissue and gangrene. They normally form after tooth extractions or root canals.

http://www.drmercola.com/dental-health/why-the-root-canal-is-brutal-for-your-health/