“• Lecturer of Endodontics..
• BDS, MSc, PhD in Endodontics.
• Faculty of oral and Dental Medicine Al-Azhar university, Cairo, Egypt.”
Mohammed Saad Easa - Egypt 
Dr.
“• Lecturer of Endodontics..
• BDS, MSc, PhD in Endodontics.
• Faculty of oral and Dental Medicine Al-Azhar university, Cairo, Egypt.”