Everyday life. Teeth yellowed by age, glass of water after coffee, bleaching, veneer … These seven truths to know

4 / Lemon, charcoal, baking soda … Be careful with use

Lemon, charcoal, baking soda … You can find everything on the internet about “natural” teeth whitening to avoid spending too much money. But beware, not everything is good to take.

– Lemon should be avoided. It “provides instant teeth whitening by demineralizing them, but it weakens the enamel, which is attacked by the acidity”, the dentist specifies.

Coal is also not recommended: “We do not recommend it. The problem is that these carbon grains are large in size and will have an abrasive effect on the enamel on the teeth and not a polishing effect. Will eliminate part of the enamel, which will not grow back, which “At the moment, without scientific study, this type of toothpaste should be banned,” explains Christophe Lequart.

– Bicarbonate powder: As with charcoal, the grains are large and therefore have an abrasive rather than a polishing effect: “The use of it must be reasonable, I would say once every three weeks”, the doctor continues.

The use of lemon together with baking soda at the same time should be prohibited. The acid of the lemon will actually lead to demineralization of the enamel. Brushing with bicarbonate on this weakened enamel will destroy part of it: “It is 100% harmful to dental health”.