Throughout your life, you will have two sets of teeth: primary (baby) teeth and secondary (permanent) teeth. The primary teeth erupt around ages 6-8 months, and all 20 are in place by age 3.
Permanent teeth begin to erupt in children around 6 years of age. A full complement of permanent teeth is usually achieved between the ages of 12 and 14 years, with the exception of wisdom teeth. They generally erupt between the ages of 17 and 21 years. The total number of permanent teeth is 32, though few people have room for all 32 teeth, which is why wisdom teeth are usually removed.
Regarding permanent teeth, those present in the very front of the mouth are called incisors. The next teeth, further back, are called the canines, or “eye teeth” The next set of teeth are called premolars, or bicuspids. The last set, in the back of the mouth, are called molars. Your permanent teeth are the ones you keep for life, so it is important that they are brushed and flossed regularly and that periodic check-ups by a dentist are followed.