A. Y. Razumova
Pavlov First Saint Petersburg State Medical University
Russian Federation

Alexandra Ya. Razumova, DDS, PhD, Associate Professor, Department of the Oral and Maxillofacial Surgery

6-8 Lvovskaya Str., Saint Petersburg, Russian Federation, 197000

A. I. Yaremenko
Pavlov First Saint Petersburg State Medical University
Russian Federation

Andrey I. Yaremenko, DDS, PhD, DSc, Professor, Head of the Department of Oral and Maxillofacial Surgery

Saint Petersburg

S. I. Kutukova
Pavlov First Saint Petersburg State Medical University
Russian Federation

Svetlana I. Kutukova, DDS, PhD, DSc, Professor, Department of the Oral and Maxillofacial Surgery

Saint Petersburg

M. N. Petrova
Pavlov First Saint Petersburg State Medical University
Russian Federation

Maria N. Petrova, 6^th year Student, Medical School

Saint Petersburg

P. P. Abramovich
Pavlov First Saint Petersburg State Medical University
Russian Federation

Polina P. Abramovich, 6^th year Student, Medical School

Saint Petersburg