1. **Material Selection**: The materials used are often composite resins or ceramics that closely replicate the physical properties of natural tooth enamel and dentin, such as strength, wear resistance, and elasticity. The idea is to provide a restoration that not only fits well but also responds to pressure and stresses in a way similar to natural teeth.

2. **Minimally Invasive Technique**: The procedure typically aims to preserve as much of the natural tooth structure as possible. Instead of removing large portions of the tooth for a filling or crown, a biomimetic approach focuses on conserving healthy tooth tissue while restoring only the damaged or decayed areas.

3. **Layered Approach**: In biomimetic restorations, the material is often applied in layers to replicate the different layers of a tooth (enamel, dentin, etc.), which enhances both aesthetics and strength. The layering helps to ensure the restoration behaves more like a natural tooth under normal forces.

4. **Adhesion**: Advanced bonding techniques are used to improve the adhesion of the restoration to the tooth, providing a strong bond that reduces the risk of failure or leakage over time.

5. **Function and Aesthetics**: Biomimetic restorations aim to restore both the function (such as chewing and biting) and appearance (color, translucency) of the natural tooth, often providing a more natural-looking and feeling restoration compared to traditional fillings or crowns.

In summary, biomimetic dental restorations are designed to be as close as possible to the natural tooth in both structure and function, offering advantages in terms of durability, aesthetics, and preserving tooth integrity.