Table 5 Characteristics of the four selected tooth wear evaluation systems (viz., Eccles index, Tooth Wear Index [TWI], Lussi index, and Basic Erosive Wear Examination [BEWE]), and of the hypothetical, broadly applicable, tooth wear evaluation system (h-TWES)

 tooth wear

x

x

 mechanical

x

 chemical

x

x

x

x

Possible overestimating chemical wear

x

x

x

 chair-side

x

x

x

x

x

 dental casts

x

x

x

 photographs

x

x

x

x

 scans

x

 screening

x

x

 diagnosing

x

x

x

x

x

 monitoring

x

x

 partial assessment

x

x

 full assessment

x

x

x

x

 occlusal

x

x

x

x

x

 incisal

x

x

x

x

x

 palatal/lingual/oral

x

x

x

x

x

 buccal/labial/facial

x

x

x

x

x

 cervical

x

 cumulative

x

 separate

x

x

x

x

 ordinal

x

x

x

x

x

 nominal

 surface area

x

x

x

x

x

 depth

x

x

x

x

x

 1

x

x

 2

x

x

 3

x

 4

x