V. Yu. Shefov
Pavlov First Saint Petersburg State Medical University
Russian Federation

Vladimir Yu. Shefov – Cand. Sci. (Med.), Assistant of the Department Dental Therapeutic and Periodontology

6-8 Lev Tolstoy Str., St. Petersburg 197022, Russian Federation

L. Yu. Orekhova
Pavlov First Saint Petersburg State Medical University
Russian Federation

Lyudmila Yu. Orekhova – Dr. Sci. (Med.), Professor, Chief of the Department Dental Therapeutic and Periodontology, Honorary President of Periodontal Association RPA

6-8 Lev Tolstoy Str., St. Petersburg 197022, Russian Federation

E. S. Loboda
Pavlov First Saint Petersburg State Medical University
Russian Federation

Ekaterina S. Loboda – Cand. Sci. (Med.), Associate Professor of the Department Dental Therapeutic and Periodontology, Elect-President of Periodontal Association RPA

6-8 Lev Tolstoy Str., St. Petersburg 197022, Russian Federation

A. V. Shefova
Pavlov First Saint Petersburg State Medical University
Russian Federation

Anastasiia V. Shefova – Postgraduate Student, Department of Pediatric Dentistry and Orthodontics

6-8 Lev Tolstoy Str., St. Petersburg 197022, Russian Federation