[1] Univ Med & Pharm Craiova, Fac Dent Med, Res Ctr Periodontal Syst Interact, Dept Periodontol, Craiova 200349, Romania
[2] Magna Graecia Univ Catanzaro, Sch Dent, Dept Hlth Sci, I-88100 Catanzaro, Italy
[3] Univ Med & Pharm Craiova, Fac Dent Med, Craiova 200349, Romania
[4] Grigore T Popa Univ Med & Pharm Iasi, Dept Dentoalveolar Surg & Oral Pathol, Iasi 700115, Romania
[5] Univ Med & Pharm Craiova, Dept Pedodont, Craiova 200349, Romania