Many toothpastes contain one or more highly toxic chemicals, fluoride being the worst. There are no oral hygiene products containing fluoride on this site. Sodium lauryl sulphate is, however, in some of the products. It is a foaming agent, not healthy, but there is only toothpaste that does not have it: the new non-foaming Auromere toothpaste. Once you get used to it, you may prefer it to everything you have used before!
Tongue cleaning is another Ayurvedic practice. It needs to be done on a regular basis and gently. Following up with a good mouthwash makes for excellent oral hygiene.