Table 1

Details of the condition in which the specimens were received and the association with specimen size, number of blocks, and change in grade upon examining deeper levels histologically

IntactIncompleteFragmentedTotal
The dimensions and number of blocks were compared statistically with the condition of the specimen using the Kruskal-Walls test.
The change in grade was compared with the condition of the specimen using the χ2 test.
Number of specimens170219200
Maximum basal dimension (mm)
Mean21.022.923.921.3
Minimum7.012.015.07.0
Maximum40.040.032.040.0
p = 0.269
Maximum apical height (mm)
Mean13.612.97.913.25
Minimum2.04.02.02.0
Maximum35.026.013.035.0
p = 0.0117
Number of blocks
Mean7.68.611.87.85
Minimum2.04.04.02.0
Maximum13.014.023.023.0
p = 0.003
Change in grade
Yes101112
No160218188