Impacted maxillary second permanent molars.
The study population consisted of fifteen children in whom twenty-one maxillary second molars were impacted by the third molars. The subjects ranged in age from nine to eighteen years. The impactions apparently were caused by the malposition of the buds of the third molars.
D000293:Adolescent; D002648:Child; D005260:Female; D006801:Humans; D008297:Male; D008437:Maxilla; D008963:Molar / Q000473:pathology; D014079:Tooth Eruption, Ectopic / Q000150:complications; D014083:Tooth Germ / Q000473:pathology; D014095:Tooth, Impacted / Q000209:etiology*