TMD signs Baseline
(n = 23)
1 month
(n = 15)
3 months
(n = 14)
6 months
(n = 12)
24 months
(n = 6)
Restricted mandibular opening 0 0 0 0 0
Clicking of the TMJ 3 3 3 3 1
Crepitation of the TMJ 6 5 5 5 2
Luxation of the TMJ 0 0 0 0 0
Pain on palpation of the TMJ
 laterally 1 1 0 0 0
 posteriorly 1 2 1 0 0
Pain on palpation
 Temporal muscle – posterior part 0 1 0 0 0
 Temporal muscle – anterior part 0 1 1 0 0
 Temporal muscle – insertion 9 8 7 5 2
 Masseter muscle 4 6 5 3 1
 Medial pterygoid muscle 5 3 3 4 2
 Lateral pterygoid muscle 8 11 7 5 1
 Posterior digastric muscle 9 11 8 7 2

n = number of patients; TMJ = tmporomandibular joint.