What holistic dentistry really says about root canals, inflammation, and long-term health
At Evolve Dental Healing by Dr Rachel Hall, we often meet patients who are deeply concerned about root canal treatment. Many arrive after reading alarming claims online suggesting that root canal-treated teeth are “toxic,” “cause cancer,” or should always be removed to improve health.
We understand where this fear comes from. When you are trying to make the best decision for your health, especially in a holistic setting, it is natural to want answers that feel safe and empowering. But unfortunately, much of the information circulating online oversimplifies a very complex relationship between oral health, inflammation, immunity, and chronic disease.
The reality is more nuanced — and far more evidence-based.
Modern research continues to confirm something holistic practitioners have understood for years: the mouth is not separate from the rest of the body.
Chronic dental infections can contribute to systemic inflammation, which may influence conditions such as diabetes, cardiovascular disease, immune dysfunction, and inflammatory illness. One area gaining increasing scientific attention is apical periodontitis — a chronic infection around the tip of a tooth root, often caused by bacteria entering the nerve space inside a tooth.
What makes these infections particularly important is that they are often silent. Many people have no pain at all and only discover the problem on an X-ray or 3D scan.
Recent studies have shown that when these chronic infections are properly treated with root canal therapy, patients may experience improvements in inflammatory markers and even better blood sugar regulation over time.
That is a very different message from the fear-based narrative that “root canals cause disease.”
This is where confusion often happens.
Some people notice that they have a root canal-treated tooth and later develop chronic illness, fatigue, autoimmune disease, or even cancer. Online discussions then assume the tooth caused the illness.
But biologically, it may often be the other way around.
The same underlying metabolic and inflammatory patterns that contribute to chronic disease can also affect the health of teeth, bone, and healing capacity.
For example:
These systemic issues can make a person:
In other words, the tooth and the body are responding to the same underlying terrain.
Cancer, diabetes, cardiovascular disease, autoimmune conditions, and chronic dental infections all share overlapping inflammatory and metabolic pathways.
That does not mean a root canal causes cancer.
It means chronic inflammation in the body can show up in many places — including the mouth.
At our holistic dental practice, we view oral health as part of a larger health picture. We look at:
A chronically infected tooth absolutely matters. But removing every root canal-treated tooth “just in case” is not supported by modern scientific evidence and can sometimes create more stress, inflammation, bone loss, and functional problems for the body.
A well-performed root canal treatment is designed to:
In many cases, saving the natural tooth is the least invasive and most biologically supportive option available.
Research now suggests that treating chronic dental infection may reduce inflammatory burden within the body — similar to how treating gum disease can improve metabolic health and blood sugar control.
This does not mean root canals are perfect or appropriate in every case. There are situations where a tooth cannot heal properly, where infection persists, or where extraction may genuinely be the better option.
But these decisions should be made based on:
Not fear.
Holistic dentistry should never rely on fear-based messaging.
A truly holistic approach asks:
Sometimes that means preserving a tooth with root canal therapy.
Sometimes it means removing a tooth.
Sometimes it means addressing broader health factors that are impairing healing in the first place.
There is rarely a one-size-fits-all answer.
The emerging science around dental infections and systemic inflammation reinforces an important message: oral health matters profoundly to whole-body health.
But it also reminds us to avoid simplistic conclusions.
Root canal-treated teeth are not inherently “toxic.” Chronic inflammation anywhere in the body deserves attention — including in the mouth. The goal should not be fear or panic, but thoughtful, evidence-informed care that supports the entire person.
At Evolve Dental Healing, we believe patients deserve balanced information, compassionate guidance, and treatment decisions that honour both modern science and holistic principles.
Because true healing is never about fear. It is about understanding the whole picture.
Call us 07 3720 1811 today to book your consultation.
Rachel is the founder and principal dentist at Evolve Dental Healing with over 30 years experience, practising holistically since 2001. Not your typical dentist, Rachel is a passionate opinion leader, challenging convention to empower people to make better dental and health choices, helping thousands to have healthy natural smiles. A respected writer and presenter on holistic dentistry, health and wellness it is Rachel’s mission to revolutionise the way people look at their dental health.