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. 2022 Sep 10;12(6):818–822. doi: 10.1016/j.jobcr.2022.08.025

Table 1.

Co-relation of Interruption of white line (IWL) on OPG with Interrupted cortex on CBCT.

CBCT (Interrupted cortex)
Total Chi-Square value = 
52.941
Absent Present
OPG (IWL) Absent Count 24 6 30
% within OPG (IWL) 80.0% 20.0% 100.0%
Present Count 0 45 45 P value = 0.001
S
% within OPG (IWL) 0.0% 100.0% 100.0%
Total Count 24 51 75
% within OPG (IWL) 32.0% 68.0% 100.0%

Table 1 showing relation between Interruption of white line on OPG with interruption of cortex on CBCT. Among 75 patients interruption of white line was noted in 45 patients on OPG and was absent on 30 patients, where as on CBCT interruption of cortex was noted in 51 patients and was absent in 24 patients. On Chi-Square statistical analysis the p-value was found to be 0.001 significant, which shows that there is a correlation between interruption of white line on OPG with interruption of cortex on CBCT.