Tooth wear is a multifactorial condition, leading to the loss of dental hard tissues, viz. enamel and dentine. Tooth wear
can be divided into the subtypes mechanical wear (attrition and abrasion) and chemical wear (erosion). Because of its multifactorial
aetiology, tooth wear can manifest itself in many different representations, and therefore, it can be difficult to diagnose
and manage the condition. A systematic approach is a sine qua non. In the below-described tooth wear evaluation system (TWES),
all necessary tools for a clinical guideline are present in different modules. This allows the dental clinician, in a general
practitioner setting as well as in a referral practice setting, to perform a state-of-the-art diagnostic process. To avoid
the risk of a too cumbersome usage, the dental clinician can select only those modules that are appropriate for a given setting.
The modules match with each other, which is indispensable and essential when different modules of the TWES are compared. With
the TWES, it is possible to recognise the problem (qualifying), to grade its severity (quantifying), to diagnose the likely
causes and to monitor (the progress of) the condition. In addition, a proposal for the classification of tooth wear is made.
Further, it is possible to determine when to start a treatment, to make the decision which kind of treatment to apply and
to estimate the level of difficulty of a restorative treatment.