Deep stains that whitening could barely touch

Her teeth were a deep yellow with a brownish, chocolate tinge. We started with professional whitening and the shade hardly moved. This kind of stain is inside the tooth, where whitening can't get to it.

So we covered them with 20 E-max laminates, ten upper and ten lower. E-max looks very close to natural enamel, and a thin layer is enough to hide the colour underneath.