1. Department of Periodontology, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Iasi 700115, Romania
2. Department of Dental Technology, Faculty of Dental Medicine, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Iasi 700115, Romania
3. Department of Biochemistry, ‘Grigore T. Popa’ University of Medicine and Pharmacy, Iasi 700115, Romania