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Teeth diagram7/25/2023 ![]() The cementoenamel junction is the anatomical boundary between the enamel-covered crown and cementum covered root. The gingiva covers the border of the alveolar process that is adjacent to the teeth. The crown of the tooth is what is visible in the oral cavity, and the root of the tooth is embedded into the bony ridge of the upper and lower jaws called the alveolar process via attachment to the periodontal ligament. The anatomy of a tooth divides into two main sections: the crown and the root. In the mandible, permanent adult teeth are numbered 17 through 32 from left to right, and primary teeth are labeled with letters K through T from left to right. In the maxilla, permanent adult teeth are numbered 1 through 16 from right to left, and primary teeth are labeled with letters A through J from right to left. The process fo identifying teeth uses the Universal National System. Permanent dentition also consists of the additional teeth that are three types of molars - first, second, and third. The primary incisors, canines, and molars get replaced by the successional permanent incisors, canines, and premolars. The primary dentition consists of the two types of incisors - central and lateral, canines, and two types of molars - first and second. Human teeth are also diphyodont because there are two generations of teeth during a lifespan: 20 deciduous (primary) teeth and 32 permanent teeth. Human teeth are heterodont and characterized by four tooth classes: incisors, canines, premolars, and molars. Take care of this complex system to ensure that you have a healthy smile.Teeth are calcified structures found in the oral cavity embedded to the upper jaw (maxilla) and lower jaw (mandible). Each tooth has several distinct parts, with a unique role. There are four main types of teeth with different functions: biting, chewing, and grinding food. Learning about the basics of tooth anatomy will help you understand how oral health conditions occur. ![]() Pulp: Is found in the center of the tooth the pulp is a soft tissue that consists of nerve tissue and blood vessels.Dentin makes up the majority of a tooth's structure. Dentin: This is the layer underneath the tooth enamel surface.It is the hardest and most mineralized tissue in the body. Enamel: The enamel is the outer layer of the tooth.It is embedded in the jawbone and enables teeth to withstand the force of biting and chewing. Root: The root acts as an anchor that keeps your teeth in place.Gumline: This is where the gum and tooth meet.For example, the incisors are sharp and are for cutting into food, while the molars have a flat surface for grinding. The shape of the crown enables different functions. Crown: This is the top part of the tooth.Although the tooth is a small element of human anatomy, it consists of several parts - each with an important function. Now that you know the type of teeth that make up your smile let's find out about the parts of a tooth. The molars assist with grinding and breaking down of food. Molars: These teeth have several cusps on the biting surface.Premolars: Also referred to as bicuspids, these teeth have two pointed cusps for crushing food.Canines: Found on either side of the incisors, these slightly pointed teeth help you tear food when you bite.Incisors: Are the eight front teeth, four upper and four lower.Each of your teeth has specific functions, including biting, tearing, and chewing food. Adults have 32 permanent teeth, 16 in the upper jaw and 16 in the lower jaw.
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