Rahaf Safadi, Reef Al-Safadi , Riham Al-Safadi , Ebtisam Al-Ghamdi , Hiyam AlMozayen , Shahad Al-Farraj , Wafa Binsaleh , Yara Al-Mutawa , Ghadah Al-Dossari. 2018. “Prevalence of First Permanent Molar Loss in a Population of Saudi Adolescents and Young Adults”. International Journal of Emerging Trends in Science and Technology 5 (04), 6577-84. http://igmpublication.org/ijetst.in/index.php/ijetst/article/view/1257.