Who doesn’t want sparkling pearly whites? Some of us are born with them, but then lifestyle habits and ageing conspire against us. Luckily, most of us can achieve a whiter, brighter smile. Let’s discover the options and the pitfalls of teeth whitening…
Let’s get one thing straight right up front… not everyone has naturally white teeth. It’s up to our genetic make-up, and white teeth doesn’t necessarily mean they are healthy, or yellow teeth unhealthy. But, unfortunately, most of us are programmed to like white teeth, and perception is reality. Then there are some of us lucky enough to start out with teeth that are beautifully sparkling white, but over time all the things we love to eat and drink, injury or poor oral hygiene can leave us with stained, yellow teeth.
The next thing we need to understand is that the whiteness of our teeth depends not on the enamel so much, but on the dentin inside the tooth, which gets darker and can look yellow with the passing of time. The enamel also plays a part in that we can either have thick enamel or thin enamel, and enamel which is translucent, letting light shine through, reflecting what’s underneath. Enamel, sadly, can also wear down - hard brushing, eating and drinking acid foods, etc., can make the enamel thinner, so the dentin shines through more. It is also porous, with channels down to the dentin, and it can get stained from things we eat and drink (see below) – and smoking!