IRCT138803202019N1 IRCT 2009-07-25 Iran University of Medical Sciences The effect of jaw relaxation on pain of burn dressing change in hospitalized patients of Shahid Motahari Clinical Educational Center in 2009. The effect of jaw relaxation on pain of burn dressing change in hospitalized patients of Shahid Motahari Clinical Educational Center in 2009. 2009-06-22 anticipated 120 Complete https://irct.ir/trial/1645 interventional Randomization: Randomized, Blinding: Single blinded, Placebo: Not used, Assignment: Single, Purpose: Supportive. 3 Burns and corrosions. Intervention 1: Intervention group: This group will receive Jaw relaxation. subjects will be asked to sit in a comfortable semi -fowlers position in their beds and perform the following procedure for 20 minutes: (a) let the lower jaw drop slightly (b) keep the tongue quiet and resting in the bottom of the mouth (c) let the lips get soft (d) breath slowly with a three-rhythm pattern of inhale, exhale, and rest (e) stop forming words and do not even think words. Subjects' ability to use the technique will be verified by observing for four criteria: (a) face relaxed (b) no grimace or frown (c) not talking (d) slow respirations (2 points each). Mastery is defined as a score of 7 out of 8 points. Intervention 2: Control group: No intervention will be performed.