Table 1.

Distribution pulp stone (PS) by age.

Patient Age (years)	Number of patients	Number of patients with PS	% patients with PS
15–19	119	39	32.77
20–29	166	96	57.83
30–39	202	154	76.24
40–49	247	179	72.47
50–65	80	46	57.50
Total	814	514	63.14