Fig 1.
Chart containing the search strategy for electronic databases.
Fig 2.
Flow diagram for selection of studies (*according to the previous systematic review published by Bonecker et al., 2003 [3]).
Fig 3.
Meta-analysis for caries prevalence in primary teeth (Heterogeneity—Q Cochran: p<0.0001; I-squared = 94.5% (95% CI = 93.6% to 95.3%).
Fig 4.
Meta-analysis for caries prevalence in permanent teeth (Heterogeneity—Q Cochran: p<0.0001; I-squared = 98.8% (95% CI = 98.7% to 98.8%).
Fig 5.
(a) studies with primary teeth and (b) studies with permanent teeth.
Table 1.
Influence of some characteristics related to the different studies on caries prevalence.
Fig 6.
Trend charts for caries prevalence.