You may often hear jokes about dentists, and most people don't like visiting a dentist. So what can be done if you really want to keep your teeth healthy without having to go to the dentist for frequent or periodic examinations?

Here's good news for you, that: scientists at Princeton and Tufts have developed a special tooth sensor, Tooth Sensor. This tiny, sophisticated object will be able to remind you all the time, when it starts detecting bacteria that can harm your teeth. So in the future, the possibility of tooth damage or pain is very, very minimal.