System and method for diagnosis and assessment of disc derangement disorders

A non-transitory computer-readable medium, having stored thereon, instructions that when executed by a computing device, cause the computing device to perform operations for determining disc derangement disorder variables in a patient, the operations comprising:

• (A) scanning with an image scanner and inputting a first image of a first patient's articular eminence and glenoid fossa;
• (B) on the first image:
• (B)(1) identifying a superior-most point of the glenoid fossa and an inferior-most point of the articular eminence;
• (B)(2) overlaying a first horizontal line through the superior-most point of the glenoid fossa identified in (B)(1) and a second horizontal line through the inferior-most point of the articular eminence identified in (B)(1);
• (B)(3) overlaying and measuring a length of a first vertical line that extends between the first and second horizontal lines overlaid in (B)(2) originating at the superior-most point of the glenoid fossa identified in (B)(1);
• (B)(4) overlaying and measuring a length of a second vertical line that extends between the first and second horizontal lines overlaid in (B)(2) originating at the inferior-most point of the articular eminence identified in (B)(1);
• and
• (B)(5) measuring a horizontal distance between the first vertical line overlaid in (B)(3) and the second vertical line overlaid in (B)(4);
• (C) calculating at least one disc derangement disorder variable by:
• (C)(1) dividing the measured length of the first vertical line measured in (B)(3) by the horizontal distance measured in (B)(5) to determine a first disc derangement disorder variable including an anterior aspect of the glenoid fossa height to width ratio;
• (D) using the at least one disc derangement disorder variable to tailor the dental treatment of the first patient.