Table 5.

Intra-class correlation coefficients (ICC) of the parameters. Rt ANS right half of anterior nasal spine, Lt ANS left half of anterior nasal spine, Rt PNS right half of posterior nasal spine, Lt PNS left half of posterior nasal spine, Rt right, Lt left

Parameter	ICC
Distance of Rt ANS from maxillary sagittal plane	0.980
Distance of Lt ANS from maxillary sagittal plane	0.984
Distance of Rt PNS from maxillary sagittal plane	0.981
Distance of Lt PNS from maxillary sagittal plane	0.976
Width of opening in Rt pterygoid process	0.973
Width of opening in Lt pterygoid process	0.984
Distance between two halves of expansion screw	0.979