Fig 1.
Flow diagram showing the literature review process.
Table 1.
Main characteristics of the included studies with low and moderate risk of bias.
Table 2.
Quality assessment of the included primary studies with low or moderate risk of bias.
Fig 2.
Estimated proportions of mandibular third molar in stage H for males according to age.
*Memorando et al. [33] includes both females and males.
Fig 3.
Estimated proportions of mandibular third molar in stage H for females according to age.
*Memorando et al. [33] includes both females and males.
Fig 4.
The proportion of mandibular third molar in males and females with stages <H and H in different age groups.
Data from Kasper et al., 2009 [29] and Lee et al., 2010 [30].