With an estimated 3.5 billion electric toothbrushes sold worldwide last year, the market is continuously growing with plenty of choices at a variety of prices. With that in mind, I regularly scan the dental aisles in various shops to keep up to date with what’s on the market. It’s also where I usually meet a poor soul scratching their head trying to work out which electric toothbrush they should buy. I take mercy on them and step in to offer my expert opinion. Let’s break dow