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The authors regret that they did not adequately provide credit to the original source of the scoring system used as a part of the manuscript, highlighted in Table 1. The following reference from Nyvad et al. should have been included:
Nyvad B, Machiulskiene V, Baelum V. 1999. Reliability of a new caries diagnostic system differentiating between active and inactive caries lesions. Caries Res. 33(4):252–260.