A. A. Skakodub
Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

Alla A. Skakodub, DMD, PhD, Associate Professor, Department of the Orthodontics and Preventive Dentistry, Borovsky Institute of Dentistry

11 Mozhaysky Val Street, Moscow, 121059

Y. Jin
Sechenov First Moscow State Medical University (Sechenov University); Qingliang Dental Clinic
China

Yiyao Jin, DMD, PhD student, Department of the Orthodontics and Preventive Dentistry, Borovsky Institute of Dentistry

Moscow, Russian Federation;

Korla, China

R. Zeng
Sechenov First Moscow State Medical University (Sechenov University); Ma Pengsheng Dental Clinic
China

Ruijie Zeng, DMD, PhD student, Department of the Orthodontics and Preventive Dentistry, Borovsky Institute of Dentistry

Moscow, Russian Federation;

Lanzhou, China

A. M. Dybov
Sechenov First Moscow State Medical University (Sechenov University)
Russian Federation

Andrey M. Dybov, DMD, PhD, DSc, Docent, Head of the Department of Orthodontics and Preventive Dentistry, Borovsky Institute of Dentistry

Moscow

I. A. Umerenkov
Lomonosov Moscow State University
Russian Federation

Ivan A. Umerenkov, Student, Department of the Geography

Moscow