Table 5.

Distribution of the extent of the bone defect caused by periodontitis calculated on panoramic tomography and the tonsillolith detection rate on CT

Bone loss (%)	Number of patients		Detection rate (%)
	Present	Absent
0	66	136	32.7
< 10	59	80	42.4
10 - < 20	44	53	45.4
20 - < 30	37	22	62.7
30 - < 40	25	15	62.5
40 - < 50	17	7	70.8
50 - < 60	7	4	63.6
60 - < 70	12	7	63.2
70 - < 80	9	4	69.2
80 - < 90	2	2	50.0
Total	278	330	45.7
			(n = 608)