The mouth does not need to be sterilised, it needs balance
- Ana Diaz
- Feb 12
- 3 min read
For many years, we have been taught that a healthy mouth is a clean, disinfected, bacteria-free mouth. This has been the dominant message in modern dentistry.

Powerful mouthwashes, increasingly aggressive toothpastes, daily use antibacterial mouthwash...
All driven by one very clear idea: elimination.
Yet, when you begin to observe more closely in clinical practice, in patients, in the real evolution of treatments, something no longer quite adds up. Because the mouth is not an inert surface. It is not a tile that needs scrubbing until it shines. The mouth is a living, complex, dynamic ecosystem. And it is deeply connected to the rest of the body.
The mouth: an ecosystem, not an isolated cavity

Within the oral cavity live hundreds of bacterial species, along with fungi and other microorganisms. Together, they form what we call the oral microbiome.
A microbiome that:
Acts as a first line of defence against pathogens
Participates in the initial stages of digestion
Modulates inflammatory responses
Communicates with the immune system
Influences the balance of the entire digestive system
Not all bacteria are a problem. In fact, many are essential for oral health. This is why, when we talk about oral health, the goal should not be indiscriminate elimination, but rather balance.
What happens when we try to “sterilise” the mouth
In daily clinical practice, we increasingly see patients who “do everything right” and yet present with:

Recurrent caries
Persistent gingival inflammation
Dental hypersensitivity
Bruxism and orofacial tension
Associated digestive complaints
When we look beyond the isolated symptom, a familiar pattern often emerges: an altered oral microbiome.
The prolonged use of antibacterial mouthwashes, aggressive toothpastes or overly mechanistic approaches can lead to dysbiosis, an imbalance that leaves the mouth more vulnerable, not more protected. Less resilient. More reactive.
Mouth, digestion and the nervous system: an inseparable relationship
The mouth is the first gateway of the digestive system.What happens here influences everything that follows.

An altered oral microbiome can contribute to:
Heavy or difficult digestion
Intestinal inflammation
Dysregulated immune responses
Chronic inflammatory states
In addition, from a neurofunctional dentistry perspective, the mouth does more than digest: it regulates.
The tongue, breathing, swallowing and chewing are closely linked to the autonomic nervous system. This is why it is not uncommon for patients with oral imbalances to also experience chronic stress, bruxism, sleep disturbances, lack of concentration, hyperactivity, emotional dissordes...
The mouth speaks, even when we do not yet know how to listen.
My clinical approach: function, biology and respect
As a dentist specialised in orofacial neurofunctional rehabilitation and re-education, my work is not limited to “fixing teeth”. It begins with a broader perspective.
One that rests on three core principles:

Respecting biology
Restoring function
Understanding the mouth as part of a larger system
This approach draws on current biological and functional dentistry frameworks, as well as daily clinical experience. But beyond theories and schools of thought, listening to the patient as a whole is essential.
My sister and I decided to create a different toothpaste
From this way of understanding oral health, an inevitable question arose, Does it make sense to recommend daily hygiene products that disrupt the very microbiome we aim to protect in clinical practice? For us, the answer was clear.
That is why, together with my sister, also a dentist, we decided to develop a toothpaste that respects the oral microbiome and by extension, the balance of the entire digestive system.
Not as a miracle product. Not as a universal solution. But as a logical consequence of a specific way of understanding health.
First came the clinic.Then the need.And only then, the creation.

Prevention is not about cleaning more, it is about understanding better
True prevention is not about:
Brushing harder
Using increasingly aggressive products
Trying to “kill” more bacteria
Real prevention begins when we:
Respect biology
Restore function
Educate body awareness
Understand that the mouth is not separate from the body
Because a healthy mouth is not a sterile mouth, it is a balanced one.

This blog was created with a clear purpose: to share a way of practising dentistry that is more conscious, more functional and more respectful of the body.
If you have read this far, you may already sense that oral health goes far beyond teeth. And this is only the beginning



Comments