Faculty Profiles

Department Chair

Dr. Hans-Peter Weber was appointed as Professor and Chair of the Department of Prosthodontics and Operative Dentistry in February 2010. Prior to joining Tufts University School of Dental Medicine, he served as Professor and Chair of the Department of Restorative Dentistry and Biomaterials Sciences at the Harvard School of Dental Medicine across town. Dr. Weber holds dental degrees from the University of Berne, Switzerland (Dr. med. dent., 1976) and the Harvard School of Dental Medicine (DMD, 1990), as well as Certificates in Prosthodontics (1979) and Periodontology (1984) from the University of Berne.

He has contributed extensively to the scientific literature in his field and is a frequently invited lecturer at national and international meetings. He is a member of the Executive Council of the American Academy of Prosthodontics, an Honorary Member of the American College of Prosthodontists, and a Member of the Board of the International Team of Implantology (ITI). Dr. Weber also serves as Associate Editor of the journal “Clinical Oral Implants Research” and as reviewer for several other dental journals.

Division Heads

Nopsaran Chaimattayompol (Nui), DMD, MPH received his first dental degree, DDS, from Mahidol University of Dentistry, Thailand in 1994, earned his specialty certificate in Prosthodontics in 1997 and fellowship certificate in Implant Dentistry in 1999 both from New York University College of Dentistry (NYUCD). He later received his DMD and MPH from Tufts University School of Dental Medicine (TUSDM) and Tufts University School of Medicine (TUSM) respectively in 2003.

Dr. Chaimattayompol joined TUSDM as a faculty member in 1999. He is presently a Clinical Professor, Division Head of Prosthodontics and maintains his private practice limited to Prosthodontics and implant dentistry. He has conducted many courses and directs Implant Dentistry in the Predoctoral Prosthodontic Program. Dr.  Chaimattayompol holds a membership in the American Dental Association, American Dental Education Association, and American College of Prosthodontists, International College of Prosthodontists, Academy of Osseointegration, and the Greater New York Academy of Prosthodontics. He has lectured locally, nationally and internationally as well as published several articles in a peer-reviewed scientific journal. Dr. Chaimattayompol’s current research interests are Implant Overdentures and independent Implant Overdenture attachments and Prosthodontic dental education.

Hiroshi Hirayama, DDS, DMD is a graduate of Tufts University School of Dental Medicine (TUSDM) where he received his DMD, Master’s Degree and Certification in Prosthodontics. Prior to attending Tufts, he received his DDS from Kyushu Dental College in Japan.Dr. Hirayama currently serves as the Division Head of Graduate and Postgraduate Prosthodontics, Advanced Education in Esthetics Dentistry, and the Advanced Dental Technology & Research Program at Tufts University. He is also a Professor in the Department of Prosthodontics and Operative Dentistry. Additionally, Dr. Hirayama maintains a successful private practice, specializing in Prosthodontics.

Dr. Hirayama is a Diplomat of the America Board of Prosthodontics and a Fellow of the American College of Prosthodontics (ACP). He is also an Editor of the ACP Board Study Guide on CD-ROM and has published many articles in peer-review journals. Dr. Hirayama has also spent time lecturing both nationally and abroad.

Peter Arsenault, DMD is a graduate of The University of Massachusetts where he received his Bachelor of Science and Master of Science Degrees in plastics engineering, 1986 and 1989 respectively along with a minor in chemistry. Dr. Arsenault worked in industry as an engineer before entering dental school. He earned his Doctor of Dental Medicine from Tufts University School of Dental Medicine (TUSDM) in 1994.Upon graduation, Dr. Arsenault completed a General Practice Residency at Tufts New England Medical Center and then went on to private practice. He is a member of the American Dental Association, the Massachusetts Dental Society and the Society of Plastics Engineers along with the Society of Materials Science Engineers.

Dr. Arsenault has shown great interest in product development and intellectual property law. He holds several United States Patents and patent pending products relating to the dental field.

Since 2005 Dr. Arsenault has taught at TUSDM and is currently the Division Head of Operative Dentistry in the Department of Prosthodontics and Operative Dentistry.