Atypical swallowing 1 Child 1 Child, Preschool 1 Humans 1 Malocclusion 1 Malocclusion, Angle Class II 1 Malocclusions 1 Open Bite 1 Overbite 1 Prevalence 1 SSD 1 Sound speech disorders Tongue Habits 1 adverse event 1 child 1 complication 1 habit 1 human 1 malocclusion 1 preschool child 1 prevalence 1