Comprehensive positional and morphological assessments of the temporomandibular joint in adolescents with skeletal Class III malocclusion: a retrospective CBCT study

Table 2 Comparison between controls and skeletal Class III malocclusion with different vertical skeletal patterns

Measurements	Control group		Hypodivergent group		Normodivergent group		Hyperdivergent group		Independent sample t-test (P value)
Measurements	Mean	SD	Mean	SD	Mean	SD	Mean	SD	Control-Hypodivergent	Control-Normodivergent	Control-Hyperdivergent
Skeletal measurement
ANB	2.50	1.02	− 3.88	2.45	− 3.40	1.93	− 2.28	1.81	0.000***	0.000***	0.000***
FH-GoGn	25.93	2.78	18.84	2.48	24.88	1.84	32.34	2.07	0.000***	0.090	0.000***
TMJ space
MS	2.27	0.52	2.24	0.59	2.09	0.45	1.94	0.63	0.808	0.157	0.032*
LS	1.98	0.42	2.00	0.58	1.80	0.38	1.78	0.47	0.899	0.076	0.079
SS	2.57	0.66	2.81	0.73	2.39	0.59	1.87	0.63	0.190	0.253	0.000***
AS	2.11	0.62	2.02	0.77	1.89	0.46	1.70	0.39	0.614	0.124	0.003**
PS	2.16	0.52	1.94	0.51	1.95	0.41	1.85	0.45	0.106	0.094	0.019*
Anteroposterior condylar position	0.02	0.16	0.00	0.19	0.02	0.13	0.04	0.12	0.643	0.956	0.521
TMJ shape
MIC	17.75	3.17	17.72	4.13	16.46	3.73	15.80	4.16	0.976	0.156	0.046*
LIC	18.09	4.83	18.10	4.98	16.71	4.17	16.15	5.01	0.994	0.243	0.133
AIC	31.27	6.68	28.67	5.89	26.52	5.05	25.68	5.70	0.115	0.003**	0.001**
PIC	27.11	5.67	25.84	5.50	28.30	5.34	28.68	5.90	0.379	0.408	0.299
HF	7.02	1.12	7.04	1.20	6.21	0.98	6.15	0.73	0.965	0.004**	0.001**
WF	15.78	3.05	19.35	1.80	18.69	1.57	18.40	2.12	0.000***	0.000***	0.000***
AEH	6.16	1.29	6.63	1.48	5.50	1.11	5.43	0.77	0.192	0.039*	0.011*
AEI	50.97	11.3	55.72	12.86	44.27	8.54	40.43	11.42	0.134	0.012*	0.001**
LAC	18.62	2.43	18.71	1.66	18.65	1.92	17.65	2.05	0.872	0.963	0.099
MAC	9.28	1.02	8.93	0.93	8.94	0.86	8.58	0.87	1.000	0.167	0.167

P, P value; MS, medial space; LS, lateral space; SS, superior space; AS, anterior space; PS, posterior space; MIC, medial inclination of the mandibular condyle; LIC, lateral inclination of the mandibular condyle; AIC, anterior inclination of the mandibular condyle; PIC, posterior inclination of the mandibular condyle; WF, width of the glenoid fossa; HF, height of the glenoid fossa; AEH, articular eminence height; AEI, articular eminence inclination; LAC, long axis of the condyle; MAC, minor axis of the condyle
*P < 0.05; **P < 0.01; ***P < 0.001

ISSN: 1472-6831