The oral microbiome is a naturally occurring community of bacteria, fungi and other microorganisms living within the mouth. This microbial ecosystem plays an essential role in the body's first line of defence and influences more than oral health.
Components of the oral microbiome
A balanced oral microbiome supports:
But some microorganisms are good and some are bad. When the bad outnumber the good it is called 'dysbiosis'.
Signs to watch for when dysbiosis occurs
When the oral microbiome becomes disrupted, the shift in microbial balance may present as one or more of these common signs:
The cardiovascular connection to know about
Your oral bacteria play a key role in producing nitric oxide; a compound essential for cardiovascular health. Yes, your mouth helps support your heart.
A note on antibacterial mouthwashes
Frequent use of strong antibacterial mouthwashes can reduce beneficial oral bacteria, disrupting nitric oxide production and impacting cardiovascular balance over time. Gentle, microbiome-friendly oral care is key to oral health.
Stress disrupts your oral microbiome
Stress directly affects the mouth. Common stress-related habits encourage oral dysbiosis before you often notice it. Stress-related habits include:
When the body is in chronic "fight or flight" mode, saliva production decreases, protective immune compounds decline and the mouth becomes more acidic. This creates the perfect environment for harmful bacteria to grow.
NZ native herbal support for the oral microbiome
Herbal medicine can provide gentle and holistic support, alongside medical guidance:
Horopito
Known for its strong antimicrobial and warming actions, Horopito has traditionally been used to help balance the oral microbial environment. Its naturally stimulating qualities offer mild anti-inflammatory and pain-relieving effects that support oral health and comfort.
Kawakawa
Traditionally used to soothe and comfort the teeth and gums, Kawakawa's warming and calming properties help reduce oral tissue inflammation and pain.
Mānuka
Mānuka has antifungal, antimicrobial and astringent actions, helping maintain freshness in the oral cavity. Its gentle anti-inflammatory nature supports healthy gums and oral microbial balance.
Tānekaha
Also known as celery pine, Tānekaha is a potent astringent and antimicrobial herb, effective in treating mouth ulcers, dental infections, gingivitis, yeast overgrowth and oral dysbiosis.
Natural oral health tips
Simple, evidence-informed habits for a healthier oral microbiome:
- Breathe through your nose. Avoid open-mouth breathing, which can dry oral tissues and disturb microbial balance.
- Chew food thoroughly. This stimulates saliva production and mechanically supports oral cleaning.
- Reduce refined sugars and processed foods. These feed harmful oral microbes and shift the balance towards dysbiosis over time.
- Eat a diverse range of foods. Encourage a healthy oral microbiome through a wholefoods diet, rich in vegetables, fruits and fermented foods.
- Floss daily. Remove plaque while minimising gum irritation. Consistency matters more than technique.
- Clean your tongue regularly. This reduces microbial build-up and freshens breath.
- Support your stress response. Chronic stress alters saliva composition and affects immune function. Meditation, breathing exercises, gentle movement or calming herbs can all help.