Figure 1

Survival curves of the subjects who had not died due to orodigestive cancer during the 12-year follow-up period among the four groups divided by number of teeth for all subjects (n = 656) (A), male (n = 267) (B), and female (n = 389) (C). 0 teeth, 1-9 teeth, 10-19 teeth, ≥20 teeth