Sixty subjects were randomized into two groups. The time, in seconds,
that it took subjects to respond to a standardized cold stimulus was r
ecorded at baseline and again 1 week following treatment. During the i
ntervening week subjects filled out three self-report questionnaires a
bout pain from exposure to cold and several other common sources of po
stoperative pain. These questionnaires were filled out after 1 day, ag
ain 3 days after the first questionnaire, and 3 days after the second.
Subjects mailed the questionnaires in immediately to provide three in
dependent reports about cold sensitivity, The group receiving an OptiB
ond adhesive liner under their amalgam restorations was not found to b
e any less sensitive to cold,either by timed response to a cold stimul
us or by self-report of pain, than the group receiving conventional li
ners and bases.