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The Layers of Your Teeth

1. Enamel

The enamel is the outermost layer of your teeth and the hardest substance in your body. It protects the inner layers from decay, wear, and temperature changes. However, enamel is not regenerative, meaning once it’s damaged, it cannot repair itself.

2. Dentin

Beneath the enamel lies the dentin, a yellowish layer that makes up most of the tooth’s structure. Dentin is softer than enamel and contains microscopic tubules that lead to the tooth’s pulp. When enamel is worn away, the exposed dentin can cause sensitivity to hot, cold, or sweet foods and drinks.

3. Pulp

The pulp is the innermost layer of the tooth, containing nerves, blood vessels, and connective tissue. It’s responsible for nourishing the tooth and detecting sensations such as pain. If the pulp becomes infected due to deep decay or injury, a root canal may be necessary to save the tooth.

4. Cementum

Covering the tooth’s roots is a thin layer called cementum. This layer helps anchor the tooth within the jawbone by connecting it to the periodontal ligament.

How to Protect Your Teeth

• Brush and Floss Daily: Brushing twice a day with fluoride toothpaste and flossing daily removes plaque and prevents decay and gum disease.
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  Limit Sugary Foods and Drinks: Sugary substances feed bacteria in your mouth, leading to acid production that erodes enamel. Choose healthier snacks and drink water to reduce sugar exposure.
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  Wear a Mouthguard: If you play sports or grind your teeth at night, a mouthguard can protect your enamel from damage.
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  Visit Your Dentist Regularly: Routine dental check-ups and cleanings catch problems early and keep your teeth and gums healthy.
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  Use Fluoride Products: Fluoride strengthens enamel, making it more resistant to decay. Incorporate fluoride toothpaste, mouth rinses, or treatments recommended by your dentist.

Your teeth are essential for eating, speaking, and smiling confidently. By understanding their structure and taking proactive steps to protect them, you can ensure a lifetime of healthy smiles.