Over the course of your life, you will develop two different sets of teeth. As a baby, your primary teeth, often referred to as baby teeth, will come in. Over time, they will be replaced by your permanent teeth. You will develop 20 primary teeth and 32 permanent teeth which will develop in stages. There are five different types of teeth that will erupt over your lifetime, each with a different shape and a different function. Each tooth has an opposite on the other side of the mouth that will erupt at around the same time. Incisors The incisors are the eight teeth that are most visible in the front of the mouth. There are eight incisors in total, four on the top and four on the bottom. These are often called your front teeth. The …