title: The etiology of prolonged thumb sucking.
mesh_terms: D002675:Child, Preschool; D003778:Dentures; D004644:Emotions; D005260:Female; D005386:Fingersucking / Q000209:etiology* / Q000517:prevention & control; D006240:Happiness; D006801:Humans; D008297:Male; D008722:Methods; D011585:Psychology, Applied; D013165:Splints; D013933:Thumb; D013997:Time Factors