Synopsis

Source of validity: Scientific
Rating (out of 5): 3

Tea tree oil (Melaleuca alternifolia) has a history of use in oral health, particularly in supporting gum health, with both traditional roots and emerging scientific evidence. In vitro studies have demonstrated that tea tree oil possesses strong antimicrobial activity against a variety of oral pathogens, including those implicated in gingivitis and periodontitis, such as Porphyromonas gingivalis and Aggregatibacter actinomycetemcomitans. Clinical studies, though limited in number and often small in size, suggest that tea tree oil-containing gels or mouthwashes may reduce bleeding, inflammation, and the microbial load associated with gum disease when used as an adjunct to conventional oral hygiene.

For example, a randomized controlled trial published in the Australian Dental Journal (2004) found that a tea tree oil gel significantly reduced gingival inflammation and bleeding compared to placebo after several weeks of use, though it did not significantly reduce plaque scores. Another pilot study in 2006 reported improvements in gingivitis symptoms with tea tree oil mouthwash. However, the evidence base is not robust: the studies tend to be short-term, involve relatively few participants, and sometimes lack blinding or have other methodological issues.

Overall, while tea tree oil has a traditional reputation for supporting oral and gum health, and there is preliminary scientific support for its antimicrobial and anti-inflammatory effects in this context, the evidence is not yet strong enough for unequivocal endorsement by major dental organizations. Users should also be cautious because tea tree oil can be toxic if swallowed and may cause allergic reactions in some individuals.

More about Tea Tree Oil
More about Gums

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anthocyanins
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bayberry
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bee propolis
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canaigre
capsicum
cardamom
carvacrol
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catechins
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cinquefoil
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citrus bioflavonoids
citrus sinensis (proprietary)
clove
coca
coenzyme Q10 (CoQ10)
collagen
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commiphora
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eugenol
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fiber
flavanones
flavans
flavonoids
flavonols
flavonones
fleabane
fluoride
fluorine
frankincense
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garlic
Glechoma hederacea
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hesperidin
honey
horsetail
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lemon
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licorice root
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manzanita
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orange
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Terminalia
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vitamin C
vitamin K
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Other body systems supported by Tea Tree Oil

Ears
Gums
Hair
Immune System
Nails
Respiratory System
Sinuses
Skin
Teeth
Vagina

Products containing Tea Tree Oil

We currently have no products on Vitabase that contain this ingredient.