TABLE 2.

Tooth Wear Status, Grading Document

‐ The grading document of the Tooth Wear Status is a redesign of that of the TWES 1.0 ¹²

‐ Use the two 5‐point ordinal scales of the Tooth Wear Screening (TWES 2.0) (see Table 1) or for occlusal/incisal grading, optional, the finer‐grained 8‐point ordinal scale from the TWES 1.0 can be used (Wetselaar et al, 2009)

For each tooth, the grade is determined as follows:

0 = no (visible) wear

1a = (within the enamel) minimal wear of cusps or incisal tips

1b = (within the enamel) facets parallel to the normal planes of contour

1c = (within the enamel) noticeable flattening of cusps or incisal edges

2 = wear with dentin exposure and loss of clinical crown height ≤ 1/3

3a = wear with dentin exposure and loss of clinical crown height 1/3 −1/2

3b = wear with dentin exposure and loss of clinical crown height ≥ 1/2 ‐ 2/3

4 = wear with dentin exposure and loss of clinical crown height of ≥ 2/3