![]() ![]() The following chart shows when your child's primary teeth (also called baby teeth or deciduous teeth) should erupt and shed. The root is the portion of the tooth that extends through the gum and into the bone of the jaw.The neck is the area of the tooth between the crown and the root.A protective layer called enamel covers the crown. The crown is the visible part of the tooth.How Teeth Are StructuredĮach tooth has three main parts: crown, neck, and root. The premolars, molars, and wisdom teeth are mostly used for chewing and grinding food. The central incisors and lateral incisors are mostly used for biting and cutting, and canine teeth are primarily used for tearing food. Four first bicuspids (also called first premolars)īiting and tearing.Four second bicuspids (also called second premolars).Four first molars (also called 6-year molars).Four second molars (also called 12-year molars).Four third molars (also called wisdom teeth).Four cuspids (also called canine teeth or eyeteeth)įor each set of four teeth, two teeth are in the upper arch (one on each side of the mouth) and two are in the lower arch (one on each side of the mouth).He or she can to make sure the teeth are developing properly.A child's mouth has 20 initial teeth, also called primary teeth, baby teeth, or deciduous teeth: But if teeth fail to come in a year after the expected time, check with your child's dentist. So don't be too concerned if your child's teeth don't follow the pattern above. The eruption sequence can vary quite a bit from child to child. This leaves room for the larger permanent teeth to erupt. There is normally a space between all the baby teeth. Often, about 1 tooth comes in per month once the teeth start coming in. The teeth on the upper jaw often erupt 1 to 2 months after the same tooth on the lower jaw. Often, after the child reaches 2 years old, the 4 second molars (the last of the baby teeth) appear. Then the cuspids, or the pointed teeth, appear. Lateral incisors are beside (lateral to) the central incisors. This is followed by the first 4 molars, and the remaining bottom 2 lateral incisors. Next, the 4 upper incisors usually come in. This is followed by the second central incisor on the lower jaw. The first tooth to come in is usually a middle front tooth on the lower jaw. The following are general guidelines for the eruption of the baby teeth: Girls tend to have their teeth come in before boys. Most of the primary teeth will come in by 33 months. But the baby or primary teeth begin to come in (erupt) between the ages of 6 and 12 months. Root. The part of the tooth that secures it into the jaw.Ĭlick to Enlarge When will my child's teeth come in?Įvery child is different. Pulp. Soft tissue on the inside of the tooth that contains the nerve, blood supply, and the ability to produce dentin. The inner layer and the main part of the tooth, and the largest dental tissue. The outer layer of the tooth and the hardest material in the body.ĭentin. Next, the hard tissue that surrounds the teeth is formed around 3 to 4 months of gestation.Īfter the child is born, the next stage occurs when the tooth actually sticks out (protrudes) through the gum.įinally, the child loses the primary or baby teeth.Įnamel. This is when the basic substance of the tooth forms. The first stage begins in the unborn baby at about 6 weeks of pregnancy (gestation). There are 4 main stages of tooth development: These can cause the unborn baby’s developing teeth to be discolored. Certain medicines (such as tetracycline) should not be taken during pregnancy. ![]() ![]() The mother's diet should have adequate amounts of calcium, phosphorus, vitamin C, and vitamin D. Good nutrition from the mother during pregnancy is important in tooth development. Teeth start developing in the unborn baby. Anatomy and Development of the Mouth and Teeth ![]()
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