Historically, oral health has been assessed through clinical and objective methods, which do not measure the full impact of disease on the daily living of the individual. 1 An Early Childhood Caries (ECC) percentage as high as 62.3 has been reported in Peruvian children under 6 years of age. 2 Untreated, ECC can trigger a number of negative consequences, including pain, difficulty in chewing, reduced appetite, weight loss, sleep problems, behavioural alterations, low academic performance, and need for hospitalisation. It can also contribute to increased health cost. 3,4 The concept 'quality of life' is considered a valid parameter for patient assessment in virtually every area of