Oralkhan Zhibek, (Wulaerhan Jibieke before immigration to Kazakhstan) MSc, Stomotology, Education: during 2006-2011 was completed degree Bachelor of Medicine, MD, Stomatology in Xi’an Jiao Tong University, China, during 2011-2014was completed master degree (MSc., Medicine) in Xin Jiang Medical University, China, Concentrations field: Stomatology, Endodontic, Thesis: Early Childhood Caries;Thesis Advisor: Professor Jin Zhao, Ph.D. worked as Junior Dental Doctor, 2011-2015 in Department of Endodontics, The First Affiliated Hospital of Xinjiang Medical University and Meiao Dental clinic, Urimqi, China.