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Fluoride or Hydroxyapatite ? Tips for choosing your toothpaste

There are toothpastes with and without fluoride.

Why use a toothpaste without fluoride ?

Toothpastes with fluoride contain sodium fluoride, which is a mineral that can help to strenghten tooth enamel and prevent tooth decay.

Although fluoride has been shown to be effective in protecting against tooth decay and is harmless in small doses, it has been classified by the WHO as a hazardous substance when it exceeds the recommendend daily allowance.

Fluoride is not toxic if we respect the recommended doses, set at 0,5mg per day for children under 3 years old, 0,8mg for children between 3 years old and 6 years old, 1,5mg for adults.

Fluoride is present in some bottle of water,tapp water, chewing gum, tea... Fluoride supplements are sometimes even prescribed for children with cavities.

Nevertheless, the regulations on fluoride are strictly regulated. As regards oral care, fluoride toothpastes marketed in France must not exceed 1,500 ppm (i.e. 1.5g/litre).

However it is recommended that you brush your teeth with the equivalent of a pea-sized amount of toothpaste.

Fluoride-free toothpastes are often recommended for people who have a sensitivity to fluoride or who wish to avoid the use of chemicals in their oral hygiene.

Why use fluoride-free toothpaste ?

Why did we choose to go Fluoride free at Trew Cosmetic ?

We use hydroxyapatite that is 100% natural !

Hydroxyapatite is a mineral that forms part of the structure of tooth enamel. It is the main constituent of enamel and is also present in the bones and teeth of the birth.

Hydroxyapatite is a natural form of calcium that can be used in certain restorative dental procedures, such as cavity filling or tooth enamel reconstruction. It can also be used in oral care products such as toothpastes and mouthwashes, as it can help strenghten enamel and prevent tooth decay.


This hydroxyapatite is combined with prebiotics to accentuate the anti-caries effect and also provide an anti-bad breath effect.

The oral microbiome :

The first micro-organism to colonise and protect our mouth is Streptococcus salivarius. This bacteria protect us in many ways throughout our lives. About 700 species live in the mouth at a neutral pH. Together they maintain our health. S. salivarius controls and restores this balance when necessary.

Tooth decay :

As long as this huge community is balanced, teeth and our general health are guaranteed. Bad habits such as the consumption of simple sugar like glucose (table sugar), alcohol and soda (simple sugar and acidity) disturb this balance. S. mutants convert glucose into plaque and acids. Dental plaque is an ideal habitat for acid-producing bacteria. These acids then destroy the tooth enamel and unbalance the oral microbiome. The oral microbiome loses its protective power: unprotected teeth decay.

By supporting the growth of Streptococcus Salivarius, prebiotic polysaccharides help to maintain a balanced oral microbiota.

The Streptococcus Salivarius bacterium has a central role in maintaining the balance of the oral microbiota. This bacterium makes it possible to :

  • produce antimicrobial peptides against plaque-forming bacteria
  • transforming urea into alkaline ammonium to neutralise acids
  • act against cariogenic bacteria and microorganisms causing gingivitis and periodontitis
  • act against bad breath bacteria.
  • These different levels of actions help to maintain a good oral hygiene.

    The toothpaste Trew is available here but also in pharmacies and in all our sales outlets.

    If you are not sure about which type of toothpaste is best for you, you should consult an oral health professional who will tell you whether you use a toothpaste with or without fluoride.