article 6 human 6 human experiment education 4 female 4 male 4 Humans 3 adult 3 clinical assessment 3 controlled study 3 learning 3 major clinical study 3 procedures 3 questionnaire 3 randomized controlled trial 3 Computer-Assisted Instruction 2 Female 2 Male 2 comparative study 2 patient education 2 skill 2 teaching 2 videorecording 2 Adult 1 CLAS 1 Child 1 Cohort Studies 1 Comprehension 1 Computer aided instruction 1 Crowns 1