Teeth Facts, Worksheets & Information For Kids - Free Printable

Let's solve this step-by-step by identifying and labeling the parts of the cross-section of a tooth shown in the diagram.

Step 1: Understand the structure of a tooth

A tooth has several key anatomical parts:
- Enamel: The hard, outermost layer of the tooth.
- Dentin: The layer beneath the enamel; it is softer but still hard.
- Pulp: The innermost part containing nerves and blood vessels.
- Cementum: Covers the root of the tooth.
- Periodontal ligament: Connects the tooth to the jawbone.
- Gingiva (gums): The tissue surrounding the tooth.
- Alveolar bone: The bone that holds the tooth in place.
- Root: The part of the tooth below the gum line.

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Step 2: Identify each labeled part from the diagram

Looking at the image:

#### From top to bottom on the right side (the labels pointing to the tooth):

1. Topmost label – Points to the white outer surface → Enamel
2. Next down – Points to the yellow layer beneath enamel → Dentin
3. Next – Points to the pink central area with blood vessels and nerves → Pulp
4. Below pulp – Points to the thin layer around the root → Cementum
5. Next – Points to the connective tissue between the tooth and bone → Periodontal Ligament
6. Then – Points to the bone surrounding the tooth → Alveolar Bone
7. Bottom – Points to the red and blue lines at the base, representing blood supply → Blood Vessels and Nerves (or simply Nerve and Blood Supply)

#### On the left side:

There are two vertical boxes:
- The top one points to the crown of the tooth (the visible part above the gum) → Crown
- The bottom one points to the root (the part below the gum) → Root

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Final Answer:

Label the blanks as follows:

#### Right Side (from top to bottom):
1. Enamel
2. Dentin
3. Pulp
4. Cementum
5. Periodontal Ligament
6. Alveolar Bone
7. Blood Vessels and Nerves

#### Left Side (vertical labels):
- Top box: Crown
- Bottom box: Root

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Summary of Labels:

| Label | Part |
|-------|------|
| Crown | The visible part of the tooth above the gum |
| Root | The part of the tooth embedded in the jawbone |
| Enamel | Hard outer layer protecting the tooth |
| Dentin | Layer beneath enamel; makes up most of the tooth |
| Pulp | Inner soft tissue with nerves and blood vessels |
| Cementum | Covers the root surface |
| Periodontal Ligament | Connects tooth to alveolar bone |
| Alveolar Bone | Bone that holds the tooth in place |
| Blood Vessels and Nerves | Supply nutrients and sensation to the tooth |

✔ This completes the labeling of the Anatomy of a Tooth worksheet!