*sponsored post As a blogger I have to put my hands up and admit that I was partial to using a filter to whiten my teeth. While I look after my teeth, everyday life has left them stained and not looking very bright. The worst of the staining is around the cap on my top front tooth! The place where the old and new tooth joins is so obvious, as this is where most of the staining gathers. I feel that tooth in particular is like a neon flashing light! With my face being used so often to show products…