title: [Not Available].
authors: Department of dental anatomy and morphology, dental school, Azad university, Tehran, Iran. Electronic address: vahid.rakhshan@gmail.com.
authors: Vahid
authors: V
authors: Rakhshan
authors: Tehran, Iran.
authors: Aghdas
authors: A
authors: Rakhshan
keywords: Absence congénitale de dents; Denture permanente; Dimorphisme sexuel; Facteurs de biais; Facteurs de risque; Hypodontie; Prévalence; Schéma d’occurrence