Root Canals, Cavitations & Chronic Illness: What Biological Dentistry Reveals

In the early twentieth century, a dentist named Weston A. Price conducted one of the most extensive and methodologically rigorous investigations in the history of dental research. Over a period of 25 years, Price and his colleagues at the American Dental Association’s research institute implanted root canal-treated teeth from patients with various chronic diseases beneath the skin of rabbits. In case after case, the rabbits developed the same disease the human donor had — heart disease, kidney disease, arthritis, neurological conditions. When the teeth were removed, the animals recovered. Price concluded that root canal-treated teeth harbor anaerobic bacteria whose toxins are potent enough to cause systemic disease — and that no sterilization technique available then or since could reliably eliminate them.

Price’s research was largely suppressed for decades, dismissed by mainstream dentistry as outdated. But the core of his findings — that root canal-treated teeth can serve as reservoirs of chronic infection and toxicity — has been validated by modern molecular biology, which can now identify the specific organisms and toxins present in root canal-treated teeth using DNA analysis techniques unavailable in Price’s time.

This is not fringe science. It is one of the most important and least discussed areas at the intersection of oral health and chronic illness.

What a Root Canal Actually Does

A root canal procedure is performed when the pulp of a tooth — the living tissue inside the root canals — becomes infected or necrotic. The procedure removes the pulp, sterilizes the canal space as thoroughly as possible, and fills and seals the canal with a material called gutta-percha. The tooth is then capped with a crown and remains in the mouth as a non-living structure.

The problem is that the root canal system is not a single simple tube. Each tooth has a primary canal, but branching off from it are thousands of microscopic lateral canals — dentinal tubules — that penetrate the entire structure of the tooth root. These tubules have a combined length estimated at three miles per tooth. No sterilization technique — chemical, thermal, or mechanical — can reliably penetrate and sterilize this entire system. Anaerobic bacteria — organisms that thrive in the absence of oxygen — survive in these tubules, cut off from the immune system’s surveillance, and continue producing toxins indefinitely.

The toxins produced by these anaerobic organisms — including thioethers, mercaptans, and hydrogen sulfide — are among the most potent biological toxins known. Research by Dr. Boyd Haley demonstrated that these toxins inhibit mitochondrial enzyme systems at concentrations in the parts-per-trillion range — concentrations far below what would be detectable in standard toxicological testing. This is why root canal-treated teeth can cause systemic disease without producing any local symptoms, any pain, or any abnormality visible on a standard dental X-ray.

The Focal Infection Theory

The concept underlying Price’s research is known as the focal infection theory — the idea that a localized infection in one part of the body can serve as a source of organisms or toxins that cause disease at distant sites. This theory was mainstream medicine’s dominant explanation for many chronic diseases in the early twentieth century, before the development of antibiotics shifted attention toward acute infection management. It has been substantially rehabilitated by modern research demonstrating that chronic low-grade infections — in the mouth, the gut, and elsewhere — are significant drivers of systemic inflammation and chronic disease.

Dr. Thomas Levy, in his book Hidden Epidemic, presents an extensive review of the research connecting root canal-treated teeth to cardiovascular disease, cancer, autoimmune conditions, and neurological disorders. He argues that the focal infection model, far from being outdated, is more relevant than ever in the context of modern understanding of chronic inflammation as the common pathway of most degenerative disease.

Dr. Darren Schmidt, a clinical nutritionist who has worked extensively with complex chronic illness, has documented numerous cases in his practice where the extraction of root canal-treated teeth — combined with appropriate nutritional support — produced dramatic improvements in conditions including autoimmune disease, chronic fatigue, and neurological dysfunction that had not responded to other interventions.

Cavitations: The Hidden Wound in the Jaw

Cavitations — formally known as ischemic osteonecrosis of the jaw or NICO (Neuralgia-Inducing Cavitational Osteonecrosis) — are areas of dead, poorly vascularized bone in the jaw that develop most commonly at sites of previous tooth extractions, particularly wisdom tooth extraction sites. When a tooth is extracted, the socket should heal by filling with new bone. In some individuals — particularly those with poor circulation, nutritional deficiencies, or a history of bisphosphonate use — this healing does not occur properly. The socket fills with fibrous tissue rather than healthy bone, creating a cavitation: a hollow or poorly perfused area of the jaw that becomes a reservoir for anaerobic bacteria and their toxins.

Cavitations are notoriously difficult to detect on standard dental X-rays, which show bone density but not blood flow. Cone beam computed tomography (CBCT) imaging provides a three-dimensional view of jaw bone structure and can identify areas of decreased density consistent with cavitation. Thermography and specific ultrasound techniques can also identify areas of poor circulation in the jaw. The IAOMT and IABDM have developed protocols for cavitation identification and remediation that are increasingly available through biological dental practices.

The systemic consequences of cavitations can be profound. Because cavitation tissue is poorly vascularized, it is invisible to the immune system — allowing anaerobic organisms to proliferate unchecked and release toxins that enter the lymphatic and circulatory systems. Patients with undiagnosed cavitations frequently present with chronic fatigue, widespread pain, neurological symptoms, and immune dysregulation that has not responded to any conventional or functional intervention — because the source of the chronic toxic load has never been identified or addressed.

The Immune System Connection

Both root canal-treated teeth and cavitations create a state of chronic immune activation that has far-reaching consequences. The immune system continuously attempts to address the infection it senses — producing inflammatory cytokines, activating macrophages, and generating antibodies — but because the source is sequestered behind dead tissue and inadequate blood supply, the immune response cannot resolve the infection. The result is a state of chronic, low-grade systemic inflammation that depletes immune resources, promotes autoimmunity, and accelerates the development of degenerative disease.

Research has demonstrated that patients with root canal-treated teeth show elevated levels of inflammatory markers including C-reactive protein, IL-6, and TNF-α — the same markers associated with cardiovascular disease, cancer risk, and neurodegeneration. The immune burden of maintaining a chronic response to an unresolvable infection also depletes the body’s capacity to respond to other threats — contributing to the pattern of frequent illness, poor recovery, and immune dysregulation seen in many people with complex chronic health presentations.

What Can Be Done

For individuals with root canal-treated teeth who are experiencing chronic health challenges, the decision about whether to extract those teeth is a significant one that requires careful consideration and qualified guidance. Not every root canal-treated tooth needs to be extracted — but for those that are harboring active infection or producing detectable toxins, extraction combined with proper cavitation remediation and a comprehensive detoxification protocol can be profoundly beneficial.

Working with a biological dentist trained in CBCT imaging, cavitation assessment, and biocompatible extraction techniques is essential. The extraction site must be properly debrided — removing the periodontal ligament and any necrotic bone — to allow proper healing and prevent cavitation formation. Following extraction, nutritional support for bone healing (vitamin D3/K2, magnesium, vitamin C, and silica) and a comprehensive binder protocol to capture the toxins released during and after the procedure are critical components of a successful outcome.

🌿 Recommended Tools & Resources

These are the specific supplements, protocols, labs, and tools Jacob recommends in connection with the topics covered in this article. All are available through the Beyondetox store or lab portal.

From the Supplement Store

Recommended Protocol

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References

1. Price WA. Dental Infections, Oral and Systemic. Penton Publishing, 1923.
2. Levy TE. Hidden Epidemic: Silent Oral Infections Cause Most Heart Attacks and Breast Cancers. MedFox Publishing, 2017.
3. Levy TE, Huggins HA. Routine dental extractions routinely produce cavitations. Journal of Advancement in Medicine. 1996;9(4):235–249.
4. Haley BE. The relationship of the toxic effects of mercury to exacerbation of the medical condition classified as Alzheimer’s disease. Medical Veritas. 2007;4(2):1484–1498.
5. Meinig GE. Root Canal Cover-Up. Bion Publishing, 1994.
6. Shankland WE. The temporomandibular joint, trigeminal neuralgia, and focal infection: a review. Cranio. 1993;11(4):318–322.
7. Bouquot JE, Roberts AM. Ischemic osteonecrosis under fixed partial dentures. Journal of Prosthetic Dentistry. 1992;67(1):88–94.
8. Nair PN. Pathogenesis of apical periodontitis and the causes of endodontic failures. Critical Reviews in Oral Biology & Medicine. 2004;15(6):348–381.
9. Slots J. Periodontitis: facts, fallacies and the future. Periodontology 2000. 2017;75(1):7–23.
10. Carnahan J. Unexpected: Finding Resilience through Functional Medicine, Science, and Faith. Hay House, 2023.
11. Nathan N. Toxic: Heal Your Body from Mold Toxicity, Lyme Disease, Multiple Chemical Sensitivities, and Chronic Environmental Illness. Victory Belt Publishing, 2018.