Comparison of Morphologic Parameters of Temporomandibular Joint for Asymptomatic Subjects Using the Two-Dimensional and Three-Dimensional Measuring Methods

Table 1

Mean and standard deviation of the morphologic parameters for the ten asymptomatic subjects measured in 2D CBCT (group A) and 3D model (group B).

Morphologic parameters	Group A; ()	Group B; ()	value
HCA (°)	12.19 ± 0.57	12.72 ± 0.23	0.034
CCA (°)	12.61 ± 0.39	12.93 ± 0.59	0.123
SRA (°)	76.68 ± 3.54	80.37 ± 1.23	0.012
CCW (mm)	18.21 ± 2.23	18.54 ± 2.12	0.607
MJS (mm)	2.30 ± 0.20	2.81 ± 0.35	0.002
LJS (mm)	2.57 ± 0.19	3.03 ± 0.53	0.007
SJS (mm)	2.05 ± 0.12	2.27 ± 0.18	0.001
AJS (mm)	2.47 ± 0.24	2.77 ± 0.43	0.039
PJS (mm)	2.53 ± 0.47	2.62 ± 0.66	0.601

Note: , not significant. Statistically significant difference between group A and group B by paired samples t-test (). Highly statistically significant difference between group A and group B by paired samples t-test (). HCA: horizontal condylar angle; CCA: coronal condylar angle; SRA: sagittal ramus angle; CCW: coronal condylar width; MJS: medial joint space; LJS: lateral joint space; SJS: superior joint space; AJS: anterior joint space; PJS: posterior joint space; 2D: two-dimensional; 3D: three-dimensional.