Most people tend to brush their teeth forgetting to pay attention to the plaque build-up near the gum, leading to infection and cavities. This method helps with this specific issue and remind people to spend an equal amount of time brushing each section of their mouth. Here is more info on how to brush your teeth.

Brushing your teeth isn’t enough to keep your teeth in perfect shape though: don’t forget to floss every day and regularly visit your dentist.