Patient characteristics Implant material Total
Ti TiZr
10 11 21
Age
(years) 		Meana 42.5 54.6 48.8
SD 23.8 19.2 21.8
Male 5 8 13
Female 5 3 8
Health/diseases
(n) 		Cardiovascular 2b 3c 5
Diabetes 0 1 1
Other 3 4 7
Healthy 6 5 11
Cigarettes/day
(n) 		0 8 8 16
0 to 10 2 3 5
10 to 20 0 0 0
> 20 0 0 0

aStatistically non-significant difference between the two age groups (P = 0.22).
bOne subject with "cardiovascular" and "other" diseases.
cOne subject with "cardiovascular" and "other" diseases and one subject with "cardiovascular" and "diabetes".
n = number; SD = standard deviation.