Classification

Key

Criteria

Normal

0

The surface of the enamel is soft, shiny and usually pale cream white.

Questionable

1

The enamel shows slight alterations of the translucency of the normal enamel, which can vary between some white spots and scattered spots.

Very Mild

2

Small areas, white as paper and opaque, irregularly scattered on the tooth, but affecting less than 25% of the labial tooth surface.

Mild

3

The white opacity of the enamel is greater than that corresponding to the key 2, but it covers less than 50% of the tooth surface.

Moderate

4

The enamel surfaces of the teeth show marked wear; In addition, brown dye is often a feature that alters the appearance of the tooth.

Severe

5

The surface of the enamel is greatly affected, and hypoplasia is so marked that the general shape of the tooth can be affected. Excavated or worn areas are present and an extended brown tint is found; the teeth often have a corroded appearance.