Tooth Color

The goal of this study is to learn if the toothpaste works to maintain effect of the professional tooth cleaning in adults. It will also learn about the safety of the product. The main questions it aims to answer are: • Does the toothpaste help to maintain teeth colour after professional cleaning? Researchers will compare whitening toothpaste to a regular toothpaste to see if it works to maintain effects of professional teeth cleaning. Participants will: * Use assigned toothpaste daily for 4 weeks * Visit the clinic on the established days during 4 weeks for check ups and evaluation