Effect of complementary therapies on the gag reflex

INTERVENTION: Acupressure on pericardium 6 (20 min), Washout period (10 min), Aromatherapy with peppermint essential oil (5 min) Acupressure on sham point (20 min), Washout period (10 min), Aromatherapy with distilled water (5 min) CONDITION: Individuals with severe gag refle Xduring dental procedures PRIMARY OUTCOME: insertion distance of saliva ejector; after intervention of complementary therapy SECONDARY OUTCOME: Pulse rate, Galvanic skin response; after intervention of complementary therapy INCLUSION CRITERIA: