Original Article
Investigating the Age of the Formation of Permanent Teeth in the Mandible in 5- to 16-Year-Old Children; A Study in Mashhad, Iran
Reza Derayatifar 1, Rasoul Sahebalam 2 
, Sima Abbaslou 3, Seyed-Hosein Hoseini-zarch 4,5, Najmeh Anbiaee 4,5, Samareh Mortazavi 4,5 *