Which toothpastes have more or less abrasive?

Hydrated silica, dicalcium phosphate dihydrate is the kindest of the abrasives
Smokers’ toothpastes are more abrasive
Baking soda is less abrasive

How are toothpastes flavored?

Sweeteners:

Early toothpaste — sugar or honey
Today — saccharin, sorbitol, mannitol, xylitol
Flavoring Agents used are:
Essential oils (thymol, eucalyptol, sanguinarine)
Synthetic flavors (spearmint, peppermint, wintergreen)

What’s in the “whitening” toothpastes and how do they work?

Peroxides, harsher abrasives
Pigments (tin oxide)

This removes the stained surface on the tooth surface