Forensic Dentistry, Second Edition

268 Forensic dentistry

I1 I2 CP1P2M1M2I1I2CP1 P2 M1 M2

0

2

4

6

8

10

12

14

Age at Emergence (Years)

Males

Females

Maxilla Mandible

Figure 13.2 plot of mean emergence age (years) in a contemporary cohort of
london white children. most teeth exhibit some sexual dimorphism, with girls
ahead of boys. (data from smith et al.^39 )

Table 13.3 Median Emergence Times (Years)

of the Permanent Teeth in a Contemporary

Cohort of London White Children

To o t h Males Females Sexes Pooled Pooled SD

Maxilla

I1 7.19 7.07 7.14 0.57

I2 8.56 8.02 8.29 0.83

C 11.71 11.10 11.41 1.37

P1 10.82 10.60 10.70 1.39

P2 11.71 11.52 11.61 1.50

M1 6.28 6.38 6.34 0.61

M2 12.51 12.24 12.37 1.32

Mandible

I1 6.17 6.06 6.13 0.55

I2 7.47 7.20 7.34 0.64

C 10.79 9.94 10.37 1.15

P1 10.95 10.45 10.70 1.30

P2 11.98 11.58 11.78 1.35

M1 6.25 6.31 6.28 0.51

M2 12.07 11.67 11.86 1.27

Source: Data from Smith et al.^39