Everyone should start receiving dental care the moment they are 6 months old. Dental checkups must be completed every 6 months after. This is true for teenagers, kids, adults and older people. Everyone has to visit the dental lab annually past their first birthday.
Be realistic about your expectations for whitening toothpastes. The compounds and abrasives they contain tend to be at lightening the surface stains in your teeth, for example coffee stains.