Table 2.

Inclusion and exclusion criteria

Inclusion criteria

Dental caries measured by differences in the number of teeth or surfaces that were decayed, missing, filled or presence/absence of caries  BMI objectively measured  The relationship between caries and BMI examined in individuals less than 18 years old  Observational studies analysing primary or secondary data

Exclusion criteria

Adult population (> 18 years old)  No exclusions on gender or ethnicity  Did not assess dental caries, BMI or the association between the two  Self-reported measures of BMI  Narrative reviews, case reports, letters and editorials  Animal studies  Grey literature  Studies published in languages other than English