Some toothpastes have 'whitening' as a bonus feature, and some have 'extra-whitening'. Some have no whitening at all. What is the correct amount of whitening to expect from a toothpaste? And if your toothpaste doesn't offer whitening, what colour will your teeth be?
You can also buy toothpaste for sensitive teeth, which specifically protects enamel, whereas ordinary toothpaste, I assume, obliterates it.
There is also a paste on the market which offers 'total' protection, but what does this mean? Does it mean you're protected forever, or only for a day? And does a pea-sized amount protect you totally, or do you need a larger amount?
You can also purchase toothpaste that has added fluoride - just like your local swimming pool -- meaning that if you forget to brush in the morning, then, when you head to the nearest baths, you need only swim with your mouth open to make your teeth cleaner.
There are many other super-powered-special toothpastes on the market. There's the one for stronger teeth, the one that protects gums, and the one that gives you fresh breath. Or, failing this - you can get a really cheap one that does none of those.
The main question, of course, is why do they not have a toothpaste that does all of these things?
Importantly, it's not just the paste! They now also make toothbrushes which are particularly skilled at whitening your teeth. But what happens if your toothbrush is made for whitening teeth, but the toothpaste is made for strengthening gums?
You can also buy 'Advanced' brushes, 'Plus' toothpastes and Triple Action Toothbrush-Toothpaste combos.
Despite all of this, when you go to the supermarket, you are still required to choose a toothbrush based on which one has the nicest colour. Unfortunately, as the toothbrush companies know only too well; it's impossible to remember who in your home has which coloured toothbrush. This is why you have seven green toothbrushes at home. If you want less green ones, I suggest you whiten them.