Verfärbung an Zähnen entfernen?

These are very strongly demineralized teeth that need to be treated. This does not help professional dental cleaning to eliminate stains.

Either too much fluoride was embedded in the tooth (as a child), which does not have to be treated dentically. Or decalcification (demineralization) of the tooth enamel is considered, which means a precursor of caries. Demineralization of a tooth can be caused by the consumption of particularly acidic foods, citrus and juices. In your case, a diet is useful. Either a fluoride feed can prevent further damage – but the stains remain – or fillings fix these defects. Furthermore, there is the so-called infiltration treatment which, however, does not offer any dentist. Go to your dentist and give advice.