“…All studies addressed information on oral or health status, four studies [ 6 , 13 , 29 , 30 ] focused on the healthcare needed, three studies [ 20 , 25 , 28 ] examined the treatment provided and two studies [ 13 , 30 ] examined necessary improvements. The study populations in three studies [ 24 , 25 , 29 ] were children, in five studies children and adults [ 22 , 26 , 27 , 28 , 30 ] and in four studies only adults [ 6 , 20 , 21 , 23 ]. All study samples consisted of more men than women.…”