26/10/2025
Is it just that we choose the right shade?
And the real secret in understanding tooth optical stratification is the distribution of dentin and enamel layers that give the natural shape?
In order to reach a really realistic result, we must know what each layer of age does, and how each one affects color, depth, and light behavior 👇
Gingival Zone (A3 Region)
This is the area in the cervical third, its color is warmer and the chroma is higher because the thickness of the dentin is large, and the enamel has little transparency.
In these cases, we use high-chroma dentin shade (A3–A3.5) to return depth and natural warmth in the cervical area.
Body Zone (A2 Region)
This represents the basic color of age, it has a balance between opacity and translucency because light reacts between dentin and enamel.
We use A2 dentin shade and cover it with medium-opacity enamel layer to achieve the natural body color.
Incisal Zone (Transparent + Halo)
This is the transparent area at the edges, the dentin in it decreases and the enamel increases, so it is more transparent.
The incisal halo shows the result of reflection and refraction of light at the rim.
We use translucent or opalescent enamel masses to bring back the natural halo and light dynamics.
Vertical Lobes
These are the developmental lobes that control the reflection of light on the surface of the age, and natural vitality and texture.
Time for contouring and polishing, we maintain its shape so that the surface is not flat or dull.
Real beauty is not only in color,
But in replicating the optical structure of the tooth — accurately distributing dentin, enamel and translucency makes the result realistic and visually stable in the long term.