Forensic Dentistry, Second Edition

174 Forensic dentistry

Table 9.3 below is based on Keiser-Nielsen’s mathematical results for the
possible combinations of teeth showing or not showing a feature, for instance,
missing vs. present or restored vs. unrestored, etc.
In other words, if there are thirty-two teeth present, and x represents the
number of teeth that have been extracted or filled, then the table gives the

Table 9.3 Possible Combinations:

Teeth Exhibiting or Not Exhibiting a Feature

Number of Teeth

Showing Feature

Possible

Combinations

Number of Teeth

Not Showing

Feature

1 32

1 32 31

2 496 30

3 4,960 29

4 35,960 28

5 201,376 27

6 906,192 26

7 3,365,856 25

8 10,518,300 24

9 28,048,800 23

10 64,512,240 22

11 129,024,480 21

12 225,792,840 20

13 347,373,600 19

14 471,435,600 18

15 565,722,720 17

16 601,080,390 16

17 565,722,720 15

18 471,435,600 14

19 347,373,600 13

20 225,792,840 12

21 129,024,480 11

22 64,512,240 10

23 28,048,800 9

24 10,518,300 8

25 3,365,856 7

26 906,192 6

27 201,376 5

28 35,960 4

29 4,960 3

30 496 2

31 32 1

32 1