| Affiliation: | 1. Centre for Periodontology, Department of Cariology, Endodontology and Periodontology, University Hospital of Leipzig, , Leipzig, Germany;2. Private Praxis, , Dessan‐Rosslau, Germany;3. Institute of Biochemistry, University of Leipzig, , Leipzig, Germany;4. Department of Periodontology, Victor Babes University of Medicine and Pharmacy, , Timisoara, Romania;5. Biological Laboratory, Clinic for Prosthetic Dentistry and Dental Materials, Centre of Dentistry, University Hospital of Jena, , Jena, Germany |
