1. Department of Periodontology, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
2. Department of Endodontics, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
3. Department of Pedodontics, ‘Victor Babes’ University of Medicine and Pharmacy, 300041 Timisoara, Romania
4. Department of Prosthodontics, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
5. Department of Embryology, ‘Carol Davila’ University of Medicine and Pharmacy, 020021 Bucharest, Romania
6. Department of Periodontology, ‘Iuliu Hatieganu’ University of Medicine and Pharmacy, 400000 Cluj‑Napoca, Romania
7. Department of Periodontology, University of Craiova, 200349 Craiova, Romania
8. Department of Materials and Manufacturing Engineering, Politehnica University of Timisoara, Timisoara 300006, Romania
9. Private practice, D‑80539 Munich, Germany
10. Department of Periodontology, ‘Grigore T. Popa University of Medicine and Pharmacy, 700020 Iasi, Romania