Layering techniques A-Dual-shade layering technique: It is recommended to develop confidence in layering techniques by beginning with two material shades, as this simplified technique is reported to deliver an acceptable color match in a large number of clinical situations. B-Polychromatic layering technique: When aesthetic demands are high, the widely accepted stratification technique is recommended. The fundamental principle of polychromatic layering technique is to use different composite shades to replicate the layers seen in natural teeth.