Table 2.

Anamnestic index of temporomandibular dysfunction (Ai).

Ai	Symptoms
I	No subjective symptoms of temporomandibular dysfunction—no symptoms reported by patient.
II	Mild symptoms of temporomandibular dysfunction—temporomandibular joint noise, feeling of “jaw fatigue” (fatigue of masticatory muscles), and feeling of “jaw rigidity” (increased tone of masticatory muscles).
III	Severe symptoms of temporomandibular dysfunction—restricted mouth opening, painful lower jaw movements, temporomandibular joint pain, masticatory muscle pain, temporomandibular joint luxation, and lockjaw.