Dr Chu provides comprehensive dental care to his patients. He also teaches general dentistry and performs research. He serves in the editorial board of Journal of Investigative and Clinical Dentistry, Clinical, Cosmetic and Investigational Dentistry and American Journal of TROPICAL MEDICINE & Public Health. His research interests include caries prevention and management, clinical uses of fluorides and community dental care. He has published more than 100 journal articles, reports and conference papers.