Teeth are hard, mineralized structures located in the mouth that are used to bite, tear, and grind food. Here is a brief description of the labeled parts of the teeth:

• Crown: The visible part of the tooth that is above the gumline and is covered in enamel, the hardest substance in the body.
• Enamel: The outermost layer of the tooth that provides protection and strength.
• Dentin: The layer of tissue beneath the enamel that makes up the bulk of the tooth and is softer than enamel.
• Pulp: The soft tissue at the center of the tooth that contains blood vessels and nerves.
• Root: The part of the tooth that is embedded in the jawbone and anchors the tooth in place.
• Cementum: The layer of tissue that covers the root and attaches it to the jawbone.
• Periodontal ligament: The tissue that connects the tooth to the jawbone and allows it to move slightly for chewing.
• Gingiva (gum): The soft tissue that surrounds and supports the teeth.
• Incisor: The sharp, chisel-shaped teeth at the front of the mouth used for biting.
• Canine: The pointed teeth next to the incisors that are used for tearing food.
• Premolar: The larger teeth located between the canine teeth and molars that are used for crushing and grinding.
• Molar: The largest teeth at the back of the mouth that are used for grinding and crushing food.
• Occlusal surface: The chewing surface of the tooth that comes into contact with food.
• Cusp: The raised points on the occlusal surface of the tooth that help with grinding and crushing food.

These are the main labeled parts of the teeth. The teeth are essential for breaking down food and preparing it for digestion, and they also play a role in speech, facial structure, and overall health.