A pilot investigation of condylar position and asymmetry in patients with unilateral posterior scissors-bite malocclusion based on three-dimensional reconstructive imaging technique

Table 1 Comparisons of morphologic parameters of TMJ on different occlusal states

Variables	Scissors-bite side	Normal side	P _K-S value	t or z value	P value
CV (mm³)	1740.68 ± 559.80	1662.25 ± 524.88	0.200	2.239	0.027
CSA (mm²)	818.71 ± 186.82	792.63 ± 173.44	0.200	2.201	0.030
CMI	2.08 ± 0.23	2.05 ± 0.23	0.200	1.734	0.086
FV (mm³)	597.40 ± 256.52	594.67 ± 252.76	0.200	0.124	0.902
FSA (mm²)	586.69 ± 153.35	587.82 ± 149.62	0.200	-0.089	0.929
FMI	0.98 ± 0.23	0.97 ± 0.21	0.200	0.222	0.825
CV%	207.54 ± 135.25	196.87 ± 131.13	0.200	0.973	0.333
CSA%	51.47 ± 36.98	48.17 ± 42.90	0.161	0.836	0.405
SJS (mm)	2.46 (1.61, 3.68)	2.01 (1.55, 2.87)	0.000	-2.376	0.018
AJS (mm)	3.94 ± 1.46	3.57 ± 1.30	0.200	-2.426	0.017
PJS (mm)	3.03 (2.35, 4.17)	3.07 (2.30, 4.07)	0.015	-0.909	0.363
MJS (mm)	3.37 ± 1.33	3.52 ± 1.62	0.096	-1.100	0.274

AJS Anterior joint space, CV Condylar volume, CV% The proportion of condylar volume in the articular fossa, CMI Condylar morphological index, CSA Condylar superficial area, CSA% The proportion of the condylar superficial area in the articular fossa, FMI Fossa morphological index, FSA Fossa superficial area, FV Fossa volume, K-S Kolmogorov–Smirnov, MJS Medial joint space, NADP Normal articular disc position, PJS Posterior joint space, SJS Superior joint space

ISSN: 1471-2474