S-ECC was defined as one or more cavitated, missing, or filled smooth surfaces in primary maxillary anterior teeth, or
decayed (d1+), missing or filled surface (d1+mfs) values of 5 or higher. The number of affected teeth was defined as the number of decayed (d1+:noncavitated or cavitated), missing (because of caries) and filled (f) teeth (d1+mft). Intra-examiner
reproducibility was previously assessed as excellent in two dental examinations 14 days apart in 20 children aged 3–5 years (weighted kappa score = 0.90).