West China School of Stomalology, Sichuan University, China invited Dr Thuan Le, DDS, PhD, UCSF Pediatric Dentistry Associate professor and residency program director, as a guest speaker to represent UCSF Pediatric Dentistry at the the 8th Annual Session of Chinese Society of Pediatric Dentistry in City of Chengdu in China.  Dr Le presented his didactic and clinical interest in the topic "Understanding Mechanism of Enamel Formation vs. Inherited Enamel Defects, Genetic Diagnosis, and Clinical Treatments" and had exchanged and expanded network and relationship between the universities.