Exploration of MRI T2 Mapping Image Application in Articular Disc Displacement of the Temporomandibular Joint in Adolescents

Figures & data

Figure 1 Schematic diagram.

Figure 2 Sketch map of temporomandibular joint: normal TMJ(A); disc displacement of TMJ with reduction(B); disc displacement of TMJ without reduction(C).

Figure 3 Normal temporomandibular joint in adolescents: closed-mouth position (A), open-mouth position (B), and T2 mapping image artifact (C).

Figure 4 Disc displacement of temporomandibular joint with reduction in adolescents: closed-mouth position (A), open-mouth position (B), and T2 mapping image artifact (C).

Figure 5 Disc displacement of temporomandibular joint without reduction in adolescents: closed-mouth position (A), open-mouth position (B), and T2 mapping image artifact (C).

Table 1 Comparison of Parameters Between Patients with Normal Articular Discs of Temporomandibular Joints and Those with Articular Discs of Temporomandibular Joints with Temporomandibular Disorders

Group	Cases	T2 Value[ms]	Comparison Between Groups	P value
Control group	57	39.284 ± 5.634	(Control group vs group with disc displacement with reduction)	P1:0.000
Group with disc displacement with reduction	45	33.634 ± 4.235	(Control group vs group with disc displacement without reduction)	P2:0.000
Group with disc displacement without reduction	63	30.982 ± 3.205	(Group with disc displacement with reduction vs group with disc displacement without reduction)	P3:0.000

Figure 6 T2 mean value.

Figure 7 T2 value box plot.

Figure 8 T2 value box plot and scatter plot overlay.