Participants will receive high-quality dental restorations, installed and monitored by qualified dental professionals regular periodic follow up recalls will be assigned early detect any consequences free of charge repairs or remakes for any failed dental restorations this research will help in the improvement of the tested materials
Adult patients requiring full coverage crowns in aesthetic zone
Age ≥ 21 years
Vital or endodontically treated teeth
Willing and able to provide written informed consent
Patients with active periodontal disease (probing depth > 4mm, bleeding on probing)
Patients with parafunctional habits (e.g., bruxism confirmed by clinical examination)
Poor oral hygiene (plaque index > 30%)
Systemic diseases affecting treatment outcomes (e.g., uncontrolled diabetes, immunosuppression)
Karim Ahmed Awadallah Osman
Lead sponsor
Cairo University
Sponsor institution