Abbreviation | Measurement parameters | Definition | |
---|---|---|---|
Quantitative measurements | |||
AJS | Anterior joint space | (mm) | The vertical distance from the anterior-most mandibular condyle point (ACp) to the glenoid fossa. |
SJS | Superior joint space | (mm) | The vertical distance from the most superior condyle point (SCp) to the most superior point of the glenoid fossa. |
PJS | Posterior joint space | (mm) | The vertical distance from the posterior-most mandibular condyle point (PCp) to the glenoid fossa. |
CMS | Coronal medial joint space | (mm) | The vertical distance from the condyle’s coronal medial point (CMp)  to the glenoid fossa. |
CLS | Coronal lateral joint space | (mm) | The vertical distance from the condyle’s lateral coronal point (CLp)  to the glenoid fossa. |
CLÂ 1 | Condyle length | (mm) | The horizontal distance from the posterior-most condylar point (PCp) to the anterior-most condylar point (ACp). |
CLÂ 2 | Condyle width | (mm) | The horizontal distance from the medial condyle point (MCp) to the lateral condyle point (LCp). |
CH | Condyle height | (mm) | The vertical distance from the most superior aspects of the condyle (SCp) to the reference line (L). |
FH | Fossa height | (mm) | The vertical distance from the highest point of the fossa (SF) to the reference line (L). |
β | The slope of the anterior condyle | ( ° ) | The angle formed between the line passing the tangent of the anterior slope of the condyle to point (SF) and the reference line (L). |
θ | The inclination of the articular eminence | ( ° ) | The angle formed between the line passing through the tangent of the anterior wall of the articular eminence to point (SF) and the reference line (L). |
β-θ | Condylar process - articular eminence relationship | ( ° ) | The difference between the slope of the anterior condyle and the tangent of the anterior wall of the articular eminence. |
Qualitative measurements | Â | ||
AS | Anterior slope | (Hu) | Anterior cortical bone density was measured in an area of 2mm2 ellipse in shape bone tissue representing the anterior slope, which was determined on the anterior-most mandibular condyle point (ACp). |
SS | Superior slope | (Hu) | Superior cortical bone density was measured in an area of 2mm2 ellipse in shape bone tissue representing the superior slope which was determined on the superior condyle point (SCp). |
PS | Posterior slope | (Hu) | Posterior cortical bone density was measured in an area of 2mm2 ellipse in shape bone tissue representing the posterior slope which was determined on the posterior-most mandibular condyle point (PCp). |
MS | Medial slope | (Hu) | Medial cortical bone density was measured in an area of 2mm2 ellipse in shape bone tissue representing the Medial slope, which was determined on the condyle’s coronal medial point (CMp). |
LS | Lateral slope | (Hu) | Lateral cortical bone density was measured in an area of 2mm2 ellipse in shape bone tissue representing the Lateral slope, which was determined on the condyle’s coronal medial point (CLp). |