Ferrule Effect on Fracture Resistance of Endodontically Treated Teeth Restored With Two Esthetic Post and Core Materials Fabricated With Different Techniques

Abdullah, Mohamed W; Hamdy, Amina M; Ghada Abdelfattah Abdel sattar Hussein; Abadir Ghaly; Ahmed Hani Mohamed Tawfik; Osama, Fares; Lobna Mohamed; Nada Diaa; Noura Khaled; Youstina Youssif;