Human beings have two sets of teeth throughout their lifetime: the primary teeth, also known as the baby teeth, and the secondary permanent teeth. Although the primary teeth will all be in place by the time a person is three years old, all of the permanent teeth may not be fully in place until around age fourteen. They begin to grow in at approximately age six, and continue growing. The secondary teeth are not complete until the wisdom teeth appear, at around age seventeen or older. In general, most people have a total of thirty-two teeth, but may not have enough room in their mouth for all of them to be comfortably spaced, resulting in the very common removal of wisdom teeth. The front teeth are referred to as incisors; next to them are the canine teeth, bicuspids, and then the molars. Because these permanent teeth remain in your mouth for the rest of your life, it is imperative that they are properly taken care of. A good dental health regimen is necessary for optimal oral hygiene. This includes brushing, flossing, regular dental check-ups, and more. Many people, however, do not know the proper techniques to maintaining good oral hygiene.