Hack Your Oral Health
Sakari Nikinmaa
SAKARI NIKINMAA (FIN)
Researcher, Entrepreneur, MSc, Founder @ Koite Health
Oral health is not just about losing teeth; it is also about your systemic health. The same blood that goes through your teeth and gums goes directly to your heart, and the bloodstream acts as a taxi system, shifting pathogens all around your body.
Summary
- Most dental diseases stem from bacterial biofilms that become chronic and resistant, altering local environments like pH and oxygen levels to cause decay or gum disease. - Oral pathogens can travel through the bloodstream, linking periodontal disease to over 200 systemic conditions, including cardiovascular disease, diabetes, and Alzheimer’s disease. - Standard mechanical brushing typically removes only about 65% of dental plaque, leaving behind residual, invisible biofilms that continue to drive dental disease progression. - Chronic biofilms act as protective barriers, making the bacteria within them highly resistant to traditional antibacterial therapies like antibiotics or other substances. - Targeted photodynamic therapy uses light-activated substances to eliminate harmful bacteria within biofilms via reactive oxygen, without disrupting the healthy oral microbiome.
Article
Hack Your Oral Health: Why The Mouth May Be The Body’s Most Overlooked Battleground
At Biohacker Summit 2022 Amsterdam, Sakari Nikinmaa Argued That Oral Disease Was Never Just About Teeth
There was something quietly unsettling about the proposition at the heart of Sakari Nikinmaa’s presentation, *Hack Your Oral Health*, delivered on Saturday, 15 October 2022, at Biohacker Summit 2022 Amsterdam in the Netherlands. It was not merely that dental disease remained widespread, nor that brushing alone often failed to remove the full burden of plaque. It was that the mouth, so often treated as a sealed and separate domain of health, functioned instead as a living frontier between the microbial world and the bloodstream.
Nikinmaa’s talk pushed past the cosmetic language that typically surrounds oral care. He described the mouth as a biological system where chronic bacterial biofilms could become reservoirs of disease, capable not only of damaging enamel and gums but also of influencing the wider body in ways that medicine was still working to fully understand.
“Oral diseases are linked to over two hundred different systemic diseases,” he said. “Every time your gums bleed, bacteria enter your blood and circulate, releasing toxins that disrupt the normal biological activities of your body.”
The Real Enemy Was Not Bacteria Alone, But Biofilm
Nikinmaa began with a stark claim: 95 per cent of dental diseases were caused by bacteria. But the deeper concern, he explained, was not simply the presence of bacteria, which is natural in any healthy mouth. It was the structure they built.
Biofilm begins innocently enough. Bacteria attach to the tooth surface and rapidly produce a polysaccharide matrix, the scaffold of dental plaque. In its early form, this is ordinary and expected. The danger emerges when plaque is left undisturbed long enough to become chronic, thicker, and more complex.
At that stage, the internal conditions of the biofilm begin to shift. Oxygen levels can fall. pH can drop. A once-manageable microbial layer turns into a protected habitat for pathogens that thrive in darkness, acidity, and stagnation.
For tooth decay, low pH is the decisive factor. Certain bacteria acidify the environment to the point where enamel begins to dissolve. For gum disease and periodontal disease, oxygen depletion becomes more significant, creating an anaerobic niche in which more dangerous organisms can take hold.
“Biofilms are resistant to antibacterial therapy because they have a barrier function,” Nikinmaa said. “This residual plaque is what causes the formation of dental diseases, and it is something we must proactively prevent and treat.”
The Hidden Plaque Left Behind By Brushing
One of the most arresting parts of the presentation was its challenge to the faith many place in routine brushing. Toothbrushing, Nikinmaa said, remained necessary but insufficient.
“With a toothbrush, we can only remove about sixty-five percent of the dental plaque on the surface of the teeth,” he said. “This invisible residual plaque is what leads to the formation of chronic dental diseases.”
That figure matters because what remains is often not visible to the naked eye. It is easy to mistake a smooth-feeling tooth for a clean one, or to assume that a quick daily routine has neutralised the threat. But residual plaque can persist on the surfaces of teeth and around the gum line, where it matures into the kind of chronic biofilm most associated with disease progression.
The implication was simple and disquieting: oral disease may flourish not in neglect alone, but in the gap between what people think they have cleaned and what actually remains.
Porphyromonas Gingivalis And The Journey From Gum Pocket To Body
If the talk had a villain, it was *Porphyromonas gingivalis*, the anaerobic pathogen Nikinmaa identified as one of the most concerning bacteria in periodontal disease.
In the gum pocket, he explained, aerobic bacteria initially occupy the upper regions and consume available oxygen. As oxygen is depleted deeper down, an anaerobic zone forms, allowing more pathogenic species to dominate. In chronic cases, *Porphyromonas gingivalis* can become a major part of that microbial community.
What made this especially troubling was not just its role in gum disease, but its mobility. Nikinmaa said the bacterium had been found beyond the mouth, including in liver tissue, heart tissue, and brain tissue, and had been considered a contributor to diseases such as Alzheimer’s.
This was the larger thesis of the session: the bloodstream is not merely adjacent to the mouth, but intimately connected to it. Bleeding gums are not a minor inconvenience. They are a breach.
“The same blood which goes through your teeth and gums goes directly to your heart,” Nikinmaa noted, describing the bloodstream as a “taxi system” capable of transporting pathogens and their toxins around the body.
A Common Disease Hiding In Plain Sight
There was no sense in the talk that periodontal disease belonged to a fringe category of illness. Quite the opposite. Nikinmaa pointed to the prevalence data with urgency, saying that around half the population had some form of periodontal disease, often without knowing it.
That prevalence gives the issue a new gravity. If gum disease is common, often silent, and linked to conditions such as diabetes, cardiovascular disease, and neurodegenerative decline, then oral health can no longer be dismissed as secondary care.
In that framing, the dentist’s chair becomes one of the first places where systemic risk can be glimpsed.
Why Killing Everything Was The Wrong Strategy
Yet Nikinmaa was careful not to reduce the mouth to a battlefield in which all bacteria must be eradicated. Healthy oral bacteria, he stressed, play an important role in immune defence. The goal is not sterility. It is selectivity.
“Oral bacteria are critical for our immune defense,” he said. “We cannot kill all of them, but we must target the bacteria within chronic biofilms that are resistant to treatment, without disrupting our healthy oral microbiome.”
That distinction is central to current thinking about microbiome health across the body. A treatment that wipes out all bacteria may be effective in the short term but destructive in the long term. The challenge is to suppress pathogenic communities while preserving the beneficial flora that help maintain balance.
Photodynamic Therapy As A Precision Tool
It was here that Nikinmaa introduced the presentation’s most forward-looking solution: home-based photodynamic therapy.
The concept, as he described it, relied on an inert substance activated by light. Once activated, it triggered an energy transfer reaction that generated reactive oxygen, which then acted against bacteria within the targeted area. Crucially, this approach was presented as precise rather than indiscriminate, capable of disrupting harmful biofilms without broadly damaging the healthy oral microbiome.
“The ideal solution should have high antibacterial efficacy and be targeted to plaque so that it doesn't disrupt the normal oral microbiome,” he said. “By using light activation, we can combat infection while preserving our healthy oral flora.”
This was a notable departure from older models of oral care, which often centre on mechanical force or broad-spectrum antimicrobial action. Photodynamic therapy, in Nikinmaa’s account, was about precision, frequency, and accessibility. Because chronic biofilms require repeated intervention, he suggested that effective use would need to happen at home, as part of an ongoing routine rather than as an occasional clinical procedure.
The Broader Lesson Was One Of Prevention
By the end of *Hack Your Oral Health*, the message was less about gadgetry than vigilance. Do not ignore bleeding gums. Do not assume brushing is enough. Do not think of plaque as a superficial nuisance. Disrupt biofilms before they mature. Preserve beneficial bacteria while targeting the dangerous enclaves that form when oral ecosystems are left unmanaged.
Nikinmaa’s presentation at Biohacker Summit 2022 Amsterdam was, on one level, a technical argument about bacterial architecture and light-activated therapy. On another, it was a challenge to a cultural habit: the tendency to place oral health at the margins of serious medicine.
The mouth, he suggested, was not peripheral to the body’s story. It was one of its opening chapters.
Part of Biohacker Summit 2022 Amsterdam