After graduating from Zhejiang University School of Medicine in 2009, Dr. SUN Lei has worked at SRRSH ever since. She has mainly engaged in clinical practice and scientific research of oral alveolar surgery and comprehensive dental treatment. Her main areas of expertise include minimally invasive extraction of difficult teeth, fine-tuning of complex root canals, various types of implantation and restoration surgery, comprehensive treatment of tooth loss and defects, minimally invasive restoration of tooth defects, aesthetic and whitening treatment of anterior teeth, etc. She has been responsible for or participated in multiple clinical medical research projects and published more than ten papers in her field.