A. S. Opravin
Northern State Medical University
Russian Federation

Alexander S. Opravin, DMD, PhD, DSc, Professor, Head of the Department of Operative Dentistry

Arkhangelsk

A. S. Galieva
Northern State Medical University
Russian Federation

Alexandra S. Galieva, DMD, Assistant Professor, Department of Operative Dentistry

Arkhangelsk

N. V. Davidovich
Northern State Medical University
Russian Federation

Natalia V. Davidovich, MD, PhD, Associate Professor, Department of Clinical Biochemistry, Microbiology and Laboratory Diagnostics

Arkhangelsk

E. P. Spiricheva
Northern State Medical University
Russian Federation

Elina P. Spiricheva, DMD, First-year resident, Department
of Operative Dentistry

Arkhangelsk

E. A. Polivanaya
Northern State Medical University
Russian Federation

Elena A. Polivanaya, DMD, PhD, Associate Professor, Department of Prosthodontics

Arkhangelsk

T. A. Bazhukova
Northern State Medical University
Russian Federation

Tatyana A. Bazhukova, MD, PhD, DSc, Professor, Head of the Department of Clinical Biochemistry, Microbiology and Laboratory Diagnostics

Arkhangelsk