Table 1. Summary of probands with tooth agenesis.

n permanent tooth agenesis*)	probands**)	involvement of 3rd molars	deciduous teeth
1	1	0	0
2	16	4	2
3	10	2	2
4	10	4	4
5	8	5	1
6	17	9	4
7	15	10	1
8	18	15	1
9	5	3	1
10	5	2	1
11	7	6	0
12	6	3	0
13	4	3	1
14	2	2	0
15	1	0	0
> 15	6	5	3
all	131	73	21
>= 6	86	58	12
<= 5	45	15	9
7.2	mean (all)
6	median (all)

^*excluding third molars

^**including the four probands reported earlier (see references in the text)