Continued growth of retained dentine papillae.
D003804:Dentin / Q000473:pathology; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007232:Infant, Newborn, Diseases; D014076:Tooth Diseases / Q000209:etiology* / Q000473:pathology; D014078:Tooth Eruption; D014083:Tooth Germ