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Educate yourself on variety of dental topics. |
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HumanTeeth Human teeth are divided into classes on the basis of form and function. Both the primary and permanent dentitions include incisors, canines, and molars. Premolars are only found in the permanent dentition. Since the diet of humans consists of both animal and vegetable foods, the human dentition is called omnivorous. Incisors The incisors are located near the entrance of the oral cavity and function as cutting or shearing instruments for food. The incisors contribute significantly to function, esthetics, and phonetics. Canines The canines possess the longest roots of all teeth and are located at the corners of the dental arch. They function in seizing, piercing, and tearing of food as well as in cutting. The canines serve as important guides in occlusion because of their anchorage and strategical position in the dental arches. Premolars The premolars serve a dual role in function in that they act like the canines in the tearing of food and are similar to molars in the grinding of food. Molars The molars are large, multicusped, strongly anchored teeth located nearest the temporomandibular joint, which serves as the fulcrum during function. These teeth have a major role in the crushing, grinding, and chewing of food to the smallest dimensions suitable deglutition (the act of swallowing).
Teeth are composed of enamel, pulp-dentin complex, and cementum.
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