1. Department of Prosthodontics, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
2. Tissue Engineering Laboratories, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
3. Department of Oral Medicine, Periodontology, Oral Diagnosis, and Radiology, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
4. Department of Plastic Surgery, Faculty of Medicine, Alexandria University, Alexandria, Egypt
5. Department of Maxillofacial and Plastic Surgery, Faculty of Dentistry, Alexandria University, Alexandria, Egypt
6. Department of Electrical Engineering, Faculty of Engineering, Alexandria University, Alexandria, Egypt