Quan Yuan, DDS, PhD, is Professor and Chair of Department of Prosthodontics at West China School of Stomatology, Sichuan University, China. He gained his DDS from West China School of Stomatology and in 2008 completed his doctorate. From 2009 to 2011, Dr. Yuan was a postdoctoral fellow at Department of Developmental Biology, Harvard School of Dental Medicine. He then joined West China School of Stomatology as associate professor of implant dentistry and assistant dean for education, before taking up his present position in 2013. From 2013 to 2016, he was also a visiting assistant researcher at School of Dentistry, University of California, Los Angeles. Dr. Yuan has served as executive committee member of Dental Implant Section, Chinese Stomatological Association, and fellow of International Team of Implantology. He is an editorial board member of International Journal of Oral Science and Scientific Reports. He has been lead or co-author of 80 articles in peer-reviewed journals.

• Introduction.- Medically Compromised Patients: a Biological and Social Challenge.- The Role of Substance Abuse in Dental Implant Treatment.- Organ Diseases and Dental Implant Treatment.- Bone Diseases and Dental Implant Treatment.- Dental Implants Treatment for Diabetic Patients.- Immune system-related diseases and Dental Implant Treatment.- Drug-induced Disorders and Dental Implant Treatment.- Oral diseases and Dental Implant Treatment.- Other Conditions Affecting Dental Implant Treatment.

Quan Yuan, DDS, PhD, is Professor and Chair of Department of Prosthodontics at West China School of Stomatology, Sichuan University, China. He gained his DDS from West China School of Stomatology and in 2008 completed his doctorate. From 2009 to 2011, Dr. Yuan was a postdoctoral fellow at Department of Developmental Biology, Harvard School of Dental Medicine. He then joined West China School of Stomatology as associate professor of implant dentistry and assistant dean for education, before taking up his present position in 2013. From 2013 to 2016, he was also a visiting assistant researcher at School of Dentistry, University of California, Los Angeles. Dr. Yuan has served as executive committee member of Dental Implant Section, Chinese Stomatological Association, and fellow of International Team of Implantology. He is an editorial board member of International Journal of Oral Science and Scientific Reports. He has been lead or co-author of 80 articles in peer-reviewed journals.

• Introduction.- Medically Compromised Patients: a Biological and Social Challenge.- The Role of Substance Abuse in Dental Implant Treatment.- Organ Diseases and Dental Implant Treatment.- Bone Diseases and Dental Implant Treatment.- Dental Implants Treatment for Diabetic Patients.- Immune system-related diseases and Dental Implant Treatment.- Drug-induced Disorders and Dental Implant Treatment.- Oral diseases and Dental Implant Treatment.- Other Conditions Affecting Dental Implant Treatment.