Since 1999 he has been affiliated with the university, first as a student pursuing his DScD then as a postdoc. He has received three awards from the university: two for his teaching and one for his research. He is a former member of the faculty council, the Task Force of Curriculum Review for Advanced Standing Program, and the Admissions Committee for Advanced Standing Program. Currently, he is on the Task Force on Preclinical Tutoring Resources of Boston University Dental School and is a mentor for undergraduate research opportunities. Dr. Liu has given numerous lectures and belongs to many medical associations.