It has been established in a study from the Faculty of Odontology at Malms University in Sweden that the size of teeth in premature children is smaller. Our knowledge about premature children, and their physical and mental development as they grow up, is constantly expanding. In recent years several studies of children’s dental health have been published by researchers at the Faculty of Odontology in Malma. Liselotte Paulsson-Bjarnsson, a specialist in orthodontics, has studied 80 children born before week 33 of pregnancy