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Dental Health & Hygiene: Tooth Image

Complete Teeth by Science Olympiad Student Center

complete Teeth

The teeth chew and break down the food mechanically.
* An child has 20 deciduous teeth while an adult has 32 permanent teeth.
* They erupt at different age and mature around when they reach age 13.
* There are four types of teeth: Incisors, canines, premolars, and molars.

Cross Section of Tooth by Science Olympiad Student Center

Cross Section of Tooth

Teeth consist of the crown, the neck, and the root.
* The crown is the upper surface of the tooth. Bumps on the crown are called cusps.
* The neck is the region under the crown, but above the alveolar bone.
* The root is the region inside the alveolar bone.

Dental Hygiene Videos