Adult teeth or permanent teeth replace the primary teeth. They aid in digestion, speech and general appearance. There are 32 permanent teeth, with the main difference from primary teeth is that there are 4 premolars and 6 molars in each arch. Permanent teeth begin erupting at 6yrs of age and end at 21yrs of age. Some people may not have some if not all their 3rd molars due to evolutionary changes leading to the lack of development of these teeth. The tooth consists of a crown and root , and the tooth is composed of different materials that aid in strengthening, preserving and maintaining its function.
All people have two sets of teeth. The primary dentition , sometimes called "baby teeth" or deciduous teeth consists of 20 teeth that are eventually lost or exfoliated. They are replaced with a permanent dentition , which starts to erupt around six years of age. There are 32 teeth in the permanent dentition. The teeth are arranged in a semi-circle arches in the mouth both on the top maxillary and bottom mandibular jaws arches. The top teeth are referred to as maxillary teeth and the bottom teeth are referred to as mandibular teeth. Both arches have 18 teeth, although some adults may never have had all of their teeth erupt or they may be missing some permanent teeth.
Do you know how many teeth you have? Teeth are an important part of both your bone structure and your digestion. The part of the tooth above the gumline is called the crown. And the part of the tooth below the gumline is called the root, which attaches the tooth to your jawbone.
How many teeth do you have? What are the different types of teeth and what are their functions? What do they look like? What are teeth made of? Read on to find out.