. Author manuscript; available in PMC: 2013 May 6.

Published in final edited form as: Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2006 Aug 4;103(4):534–542. doi: 10.1016/j.tripleo.2006.04.008

Table III.

Interobserver variation in measuring gonion-mental foramen and condylion-gonion distances using two-dimensional and three-dimensional measurement techniques on 28 skulls imaged in 3 positions: difference observers A and B

Landmarks	Side	Measurement	2D	3D
G-MF	Left	Mean difference	0.17	−0.78
		Standard error	0.27	0.20
		Probability of > \|t\|	0.5185	0.0002
	Right	Mean difference	0.29	−0.75
		Standard error	0.20	0.19
		Probability of > \|t\|	0.1651	0.0002
C-G	Left	Mean difference	−0.90	−0.62
		Standard error	0.19	0.19
		Probability of > \|t\|	<.0001	0.0017
	Right	Mean difference	−0.41	0.24
		Standard error	0.18	0.24
		Probability of > \|t\|	0.0314	0.2029

2D, two-dimensional; 3D, three dimensional; G-MF, gonion-mental foramen; C-G, condylion-gonion; prob, author queried.