Estimated and observed likelihood of the presence of altered sensations for subjects who did and did not receive sensory retraining exercises after controlling for psychological distress and age. (From Phillips C, Kim S, Essick G, Tucker M, Turvey TA. Sensory retraining following orthognathic surgery: Effect on Patient Report of the Presence of Altered Sensation. Am J Ortho Dentofac Orthop, 136:788–794, 2009.)