Hawthorne effect Behavior 1 Brain training 1 Cognitive plasticity 1 Dental Care 1 Effect Modifier, Epidemiologic 1 Expectancy 1 Humans 1 Medline 1 Orthodontics 1 Patients 1 Periodicals as Topic 1 Randomized Controlled Trials as Topic 1 Research Report 1 Working memory 1 adult 1 article 1 behavior 1 dental procedure 1 epidemiology 1 female 1 human 1 male 1 orthodontics 1 orthodontist 1 orthopedics 1 patient 1 psychology 1 publication 1 randomized controlled trial (topic) 1