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Table 4 Difference in averages between Ricketts values obtained by laminography and by CBCT analysis

From: Spatial analysis of condyle position according to sagittal skeletal relationship, assessed by cone beam computed tomography

Techniques Measurements Mean DS V min V max
1. CBCT Upper distance (mm) 2.5 0.8 1.2 3.8
Posterior distance (mm) 7.1 1.2 4.8 11.1
Anterior distance (mm) 2.2 0.6 1.3 4.0
Height of eminence (mm) 6.1 1.2 3.6 8.2
Angle of eminence (deg) 50.0 10.1 28.8 69.5
2. Laminography Upper distance (mm) 2.5 1.0 0.5 5.5
Posterior distance (mm) 7.5 1.5 5.0 10.0
Anterior distance (mm) 1.5 0.5 0.5 3.0
Height of eminence (mm) 6.3 1.3 4.0 11.5
  Angle of eminence (deg) 54.0 10.0 25.0 79.0
  1. All p > 0.05, Student's t test.