The Electrical Activity of the Temporal and Masseter Muscles in Patients with TMD and Unilateral Posterior Crossbite

Table 1

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.