Total
N   76
Mean age: yr (SD)   41.1 (16.5)
Female: n (%)   60 (78.9)
RDC/TMD: n (%) Group 1 5 (6.6)
  Group 2 56 (73.7)
  Group 3 15 (19.7)
Mean ICL: mm (SD)   77.4 (18.7)
TMD, temporomandibular disorders; RDC/TMD, research diagnostic criteria for TMD; ICL, imagined clenching level; Group 1, myofascial pain; Group 2, disk displacement; Group 3, arthralgia, osteoarthritis, or osteoarthrosis
Table 1: Subject demographic characteristics and the TMD type