Table 2:
Age groups of patients with canal thinning
Age Group (yr)
Total Patients Reviewed
Total Patients with Thinning
0–20
46
18 (7
a
)
21–40
92
42 (17
a
)
41–60
120
50 (19
a
)
61–80
40
21 (5
a
)
81–100
6
6 (2
a
)
a
Number of patients with bilateral thinning.