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Table V

Radiological assessment with Cone beam CT.

Parameters Patient 1 Patient 2 Patient 3 Patient 4 Patient 5 Patient 6 Patient 7 Patient 8
Helkimo Index
Anamnestic index (Ai) Ai INDEX (0/1/2) Severe Symptoms Severe Symptoms Severe Symptoms No Symptoms No Symptoms No Symptoms Mild Symptoms Severe Symptoms
Dysfunction Index (Di) Di INDEX (0/1/2/3) Mild dysfunction Mild dysfunction Moderate dysfunction No dysfunction No dysfunction No dysfunction Mild dysfunction Moderate dysfunction
Perceived Chewing Function Likert scale Good Good Acceptable Very Good Good Very Good Very Good Poor
Displacement magnitude parameters
Medio-lateral plane Condylar Distance (CD)* −4.4 mm −1.5 mm 0.6 mm 2.5 mm −4.6 mm −8.0 mm −4.0 mm −9.2 mm
Superio-inferior plane Superior Coronal Joint Space (CS)* −0.3 mm 0.3 mm −1.2 mm −2.3 mm −2.1 mm −0.2 mm 5.2 mm −0.5 mm
Antero-posterior plane Closest Anterior Joint Space (S2)* 0.4 mm −1.0 mm −0.4 mm −4.3 mm 1.7 mm 3.9 mm 0.8 mm 4.0 mm
Sum of displacement Total # 5.1 mm 2.8 mm 2.2 mm 9.1 mm 8.4 mm 12.1 mm 10.0 mm 13.7 mm
Mild: 2.0–4.9 mm, Moderate: 5.0–9.9 mm, Severe: 10.0 mm and above Moderate displacement Mild displacement Mild displacement Moderate displacement Moderate displacement Severe displacement Severe displacement Severe displacement
Deformity changes parameters
Condyle head deformity Condylar Length (CL)* 0.1 mm 0.4 mm 3.0 mm −1.4mm −1.4 mm −1.5 mm 1.8 mm 0.8 mm
Mild: 0.5–0.9 mm, Moderate: 1.0–1.9 mm, Severe: 2.0 mm and above No significant deformity No significant deformity Severe deformity Moderate deformity Moderate deformity Moderate deformity Moderate deformity Mild deformity
Rotation changes parameters
Condyle head rotation Condylar Angulation (CA)* 7.4° 0.3° −5.2° 11.2° 5.3° −13.2° −7.5° −5.8°
Mild: 2.0°–4.9°, Moderate: 5.0°–9.9°, Severe: 10.0° and above Moderate rotation No significant rotation Moderate rotation Severe rotation Moderate rotation Severe rotation Moderate rotation Moderate rotation

*Negative or positive value indicate direction of displacement.

#When calculating magnitude of displacement, direction are not considered.

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