فهرس المقالات Alireza Elsagh المقاله 1 - Prevalence of periapical periodontitis and its association with previous root canal treatment and, root canal obturation length –based on CBCT 10.71783/cofs.2024.1105072 Alireza Elsagh Parisa Ranjbarian Azadeh Torkzadeh Parisa Taheri Contemporary Orofacial Sciences , العدد 5 , السنة 2 , پاییز 2024