BEWE 2.0: Basic erosive tooth wear examination revisited: Introducing an additional level for more severe erosive tooth wear.

The Basic Erosive Wear Examination (BEWE) was proposed in 2008 as a screening tool for tooth wear. The original aim was to create a simple, convenient screening tool to prompt a clinician to record tooth wear. It was not intended to be accurate and was matched to the basic periodontal examination (BPE). Since that time it has been incorporated into dental practice software and has been adopted by Dentists. But the original screening tool created a ceiling effect, particularly at grade 3 which marked a significant progression from slight wear over the surface to almost complete obliteration of the tooth from wear. There was also low reproducibility between scores 0 and 1. The BEWE 2.0 addresses these issues and proposes a single additional score of level 4 to include 2 mm loss of crown height or 2mm horizontal wear along the cervical margin alongside clarifying the differences between scores 0 and 1.