Background Many dentists believe that sleep bruxism (SB) is a pathogenic factor in
myofascial temporomandibular disorder (TMD), but almost all supportive data rely on
patients' self-reports rather than on direct observation. Methods The authors administered a
structured self-report interview to determine whether a large and well-characterized sample
of patients with myofascial TMD (124 women) experienced SB more often than did matched
control participants (46 women). The authors then used data from a two-night laboratory …