It can be used on a daily basis, morning and night. But it is completely up to you and your personal needs.
Yes! It is 100% safe for anyone to use. The recommended age for SnowTooth™ is 6 years old and up. The device will not harm your tooth enamel or gums.
SnowTooth™ can be used with all of the above! It will not damage them.
Yes, use it daily and you notice that you will slowly have less tartar, plaque and stain than before. It doesn't replace a full dentist visit but helps a lot.
Both are fine, we usually recommend to use it before brushing teeth.