Our Company
Headquartered in Tulsa, Oklahoma, Global Dental Impression Trays, Inc. (GDIT) is a dental company founded and operated by dentists for dentists. We are committed to improving global dental procedures through innovative product development and comprehensive dental education. Our mission is to help dentists become better practitioners and better business people through dentist-centric, technologically superior products, techniques, and comprehensive education. GDIT’s management is committed to affecting change in the dental industry by educating at the dental school level, dental laboratories, and practicing dentists.
The A-Team
Developing high-quality dental products and dental continuing education media requires a high-quality team of individuals. GDIT, Inc. is no exception, presently maintaining a staff of eight highly talented forward thinking dentist. Introducing the "A-Team" led by Dr. Joseph Massad, President and Founder.
Headquartered in Tulsa, Oklahoma, Global Dental Impression Trays, Inc. (GDIT) is a dental company founded and operated by dentists for dentists. We are committed to improving global dental procedures through innovative product development and comprehensive dental education. Our mission is to help dentists become better practitioners and better business people through dentist-centric, technologically superior products, techniques, and comprehensive education. GDIT’s management is committed to affecting change in the dental industry by educating at the dental school level, dental laboratories, and practicing dentists.
The A-Team
Developing high-quality dental products and dental continuing education media requires a high-quality team of individuals. GDIT, Inc. is no exception, presently maintaining a staff of eight highly talented forward thinking dentist. Introducing the "A-Team" led by Dr. Joseph Massad, President and Founder.
Dr. Joseph Massad
Dr. Samuel Strong
Dr. William Lobel
Dr. Richard June
Dr. Joseph Thornton
Dr. William Davis
Dr. David Little
Dr. Mostafa El-Sherif
Dr. Tony Daher
Dr. Joseph Massad
Dr. Massad is a practicing dentist, lecturer and entrepreneur. Dr. Massad graduated from Loyola University of Chicago and currently serves as the Director of Removable Prosthodontics at the Scottsdale Center for Dentistry in Arizona and holds an adjunct professor position at Tufts University School of Dental Medicine in Boston. Dr. Massad is a Fellow in the American and International College of Dentists. Dr. Massad has given more than 500 lectures globally with an average of 50 dentists per lecture. Of the 25,000 dentists that have attended Dr. Massad’s lectures, at least 500 have taken one of Dr. Massad's advanced courses.
Dr. Massad is also an author and has published various professional articles in the Journal of Prosthetic Dentistry, International Journal of Periodontal and Restorative Dentistry, Compendium of Continuing Dental Education, The Independent Journal - England, The Pankey Gram, Bulletin of American Association of Dental Examiners, Journal of the Oklahoma Dental Association, Dentistry Today and Dental Economics, among others.
Dr. Massad has spent the past decade creating new businesses focused on dental product development, dental continuing education media, and multimedia productions. Dr. Massad is Co-founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. Massad is a practicing dentist, lecturer and entrepreneur. Dr. Massad graduated from Loyola University of Chicago and currently serves as the Director of Removable Prosthodontics at the Scottsdale Center for Dentistry in Arizona and holds an adjunct professor position at Tufts University School of Dental Medicine in Boston. Dr. Massad is a Fellow in the American and International College of Dentists. Dr. Massad has given more than 500 lectures globally with an average of 50 dentists per lecture. Of the 25,000 dentists that have attended Dr. Massad’s lectures, at least 500 have taken one of Dr. Massad's advanced courses.
Dr. Massad is also an author and has published various professional articles in the Journal of Prosthetic Dentistry, International Journal of Periodontal and Restorative Dentistry, Compendium of Continuing Dental Education, The Independent Journal - England, The Pankey Gram, Bulletin of American Association of Dental Examiners, Journal of the Oklahoma Dental Association, Dentistry Today and Dental Economics, among others.
Dr. Massad has spent the past decade creating new businesses focused on dental product development, dental continuing education media, and multimedia productions. Dr. Massad is Co-founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. Samuel Strong
Dr. Strong graduated from Baylor College of Dentistry in 1974. He completed two years of service in the US Naval Dental Corps in 1976 and then established a private general practice in Little Rock, Arkansas. Dr. Strong holds Fellowship and Diplomat status in the International Academy of Oral Implantology and Board Credentialed status in the Academy of Dental Sleep Medicine.
Dr. Strong is an accomplished author and lecturer. His published articles have appeared in Osmium, Practical Aerodonetics and Aesthetic Dentistry, Dentistry Today, Global Forum, and other periodicals. He lectures frequently on restorative implant and esthetic procedures and conducts hands-on workshops throughout the world.
Dr. Strong graduated from Baylor College of Dentistry in 1974. He completed two years of service in the US Naval Dental Corps in 1976 and then established a private general practice in Little Rock, Arkansas. Dr. Strong holds Fellowship and Diplomat status in the International Academy of Oral Implantology and Board Credentialed status in the Academy of Dental Sleep Medicine.
Dr. Strong is an accomplished author and lecturer. His published articles have appeared in Osmium, Practical Aerodonetics and Aesthetic Dentistry, Dentistry Today, Global Forum, and other periodicals. He lectures frequently on restorative implant and esthetic procedures and conducts hands-on workshops throughout the world.
Dr. William Lobel
Dr. Lobel graduated from Tufts University School of Dental Medicine with a DMD degree in 1972 and serves as a clinical Assistant Professor in the Department of Prosthodontics and Operative Dentistry at Tuffs University with refereed publications. Dr. Lobel runs a private practice in Saugus, Massachusetts. He received the Dean’s Award for Excellence in Clinical Teaching by the Undergraduate Classes of 2001, 2003 and 2004. He was a member of the Adjunct Faculty at the University of Oklahoma College of Dentistry and is also Co-founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. Lobel graduated from Tufts University School of Dental Medicine with a DMD degree in 1972 and serves as a clinical Assistant Professor in the Department of Prosthodontics and Operative Dentistry at Tuffs University with refereed publications. Dr. Lobel runs a private practice in Saugus, Massachusetts. He received the Dean’s Award for Excellence in Clinical Teaching by the Undergraduate Classes of 2001, 2003 and 2004. He was a member of the Adjunct Faculty at the University of Oklahoma College of Dentistry and is also Co-founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. Richard June
Dr. Richard P. June is a 1975 gradate of the Loyola University of Chicago College of Dentistry and of the General Practice Residency Programs at the Chicago West-side V.A. Hospital, the University of Illinois Hospital, and Cook County Hospital. Besides his memberships in the American Dental Association and The Illinois State Dental Society, he is a fellow in The American College of Dentists, The International College of Dentists, The Academy of Dentistry International and the American College of Dental and Facial Esthetics. Dr. June currently maintains a restorative practice in Henry, Illinois and a removable prosthodontic practice in Peoria, Illinois. Dr. June lectures throughout the United States on Removable Prosthodontics and is a clinical instructor at The Massad Institute in Tulsa, Oklahoma. He is also a member of the Dr. Joseph Massad clinical research team.
Dr. Richard P. June is a 1975 gradate of the Loyola University of Chicago College of Dentistry and of the General Practice Residency Programs at the Chicago West-side V.A. Hospital, the University of Illinois Hospital, and Cook County Hospital. Besides his memberships in the American Dental Association and The Illinois State Dental Society, he is a fellow in The American College of Dentists, The International College of Dentists, The Academy of Dentistry International and the American College of Dental and Facial Esthetics. Dr. June currently maintains a restorative practice in Henry, Illinois and a removable prosthodontic practice in Peoria, Illinois. Dr. June lectures throughout the United States on Removable Prosthodontics and is a clinical instructor at The Massad Institute in Tulsa, Oklahoma. He is also a member of the Dr. Joseph Massad clinical research team.
Dr. Joseph Thornton
Dr. Thornton graduated from Emory University School of Dentistry in 1979. He began attending courses at the L.D. Pankey Institute in 1995 and completed the continuum series in 2000. Dr. Thornton received a Fellowship Award from the Academy of General Dentistry in 2003. Dr. Thornton was an adjunct professor at the University of Oklahoma School of Dentistry and is also Co-Founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. Thornton graduated from Emory University School of Dentistry in 1979. He began attending courses at the L.D. Pankey Institute in 1995 and completed the continuum series in 2000. Dr. Thornton received a Fellowship Award from the Academy of General Dentistry in 2003. Dr. Thornton was an adjunct professor at the University of Oklahoma School of Dentistry and is also Co-Founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. William Davis
Dr. Davis graduated from Marquette University School of Dentistry in 1970 and earned his M.S. in Prosthodontics from the University of Michigan School of Dentistry in 1977. Dr. Davis is the Director of the GPR and is presently the Associate Dean at the University of Toledo Hospital. In 1987, he co-authored with Dr. L.D. Pankey, “A Philosophy of the Practice of Dentistry”, and has a second book titled, “A Philosophy of Wealth Accumulation for Dentists”. Dr. Davis is Co-Founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. Davis graduated from Marquette University School of Dentistry in 1970 and earned his M.S. in Prosthodontics from the University of Michigan School of Dentistry in 1977. Dr. Davis is the Director of the GPR and is presently the Associate Dean at the University of Toledo Hospital. In 1987, he co-authored with Dr. L.D. Pankey, “A Philosophy of the Practice of Dentistry”, and has a second book titled, “A Philosophy of Wealth Accumulation for Dentists”. Dr. Davis is Co-Founder of the Massad Center for Removable Prosthodontics in Tulsa, Oklahoma.
Dr. David Little
Dr. Little graduated from the University of Texas Health Science Center at San Antonio with a Doctor of Dental Surgery Degree in 1984. Dr. Little is a clinical evaluator for various dental companies on emerging restorative technology and new materials, putting him on the cutting edge of today's dentistry. He is an internationally respected speaker and consultant on dental materials, leadership and management with an emphasis on clinical possibilities in dentistry, vision and motivation.
Dr. Little graduated from the University of Texas Health Science Center at San Antonio with a Doctor of Dental Surgery Degree in 1984. Dr. Little is a clinical evaluator for various dental companies on emerging restorative technology and new materials, putting him on the cutting edge of today's dentistry. He is an internationally respected speaker and consultant on dental materials, leadership and management with an emphasis on clinical possibilities in dentistry, vision and motivation.
Dr. Mostafa El-Sherif
Dr. El-Sherif graduated from Alexandria University College of Dentistry in 1979 and completed a Masters Degree in Restorative Dentistry in 1983. In 1990, he earned a PhD in Fixed Prosthodontics and Dental Materials with joint supervision by Oklahoma University College of Dentistry and Tanta University. He has numerous national and international publications in more than 5 different languages in prosthodontics and restorative and cosmetic dentistry. He has lectured nationally and internationally in Fixed Prosthodontics and Dental Materials. He is an adjunct professor in the Restorative Department at Tufts University School of Dental Medicine, the Chairman Emeritus of the American College of Forensic Examiners, President of the 21st Century Dental Study Club, member of the Academy of Operative Dentistry since 1983, Manager of the Tufts Dental Alumni, Executive Board member of the Dental M Club and panel member of New Hampshire Superior Court for medical malpractice. Since 1995, Dr. El-Sherif has been in private practice in Concord, New Hampshire.
Dr. El-Sherif graduated from Alexandria University College of Dentistry in 1979 and completed a Masters Degree in Restorative Dentistry in 1983. In 1990, he earned a PhD in Fixed Prosthodontics and Dental Materials with joint supervision by Oklahoma University College of Dentistry and Tanta University. He has numerous national and international publications in more than 5 different languages in prosthodontics and restorative and cosmetic dentistry. He has lectured nationally and internationally in Fixed Prosthodontics and Dental Materials. He is an adjunct professor in the Restorative Department at Tufts University School of Dental Medicine, the Chairman Emeritus of the American College of Forensic Examiners, President of the 21st Century Dental Study Club, member of the Academy of Operative Dentistry since 1983, Manager of the Tufts Dental Alumni, Executive Board member of the Dental M Club and panel member of New Hampshire Superior Court for medical malpractice. Since 1995, Dr. El-Sherif has been in private practice in Concord, New Hampshire.
Dr. Tony Daher
Dr. Tony Daher began practicing dentistry in California in 1982 and his love for teaching promoted him to earn in 1984 a Master’s of Science degree in Medical Education from the University of Southern California (USC). Dr. Daher received a postgraduate certificate in Prosthodontics in 1988 from the University of California at Los Angeles (UCLA). He was the clinic director for the international student program at U.S.C. in 1991; and director of the Graduate Prosthodontic Program in Loma Linda University. Dr. Daher is currently an Associate Professor of Prosthodontics in the Center for Prosthodontics and Implant Dentistry at Loma Linda University (LLU). He has written many scientific and clinical articles, and has lectured nationally and internationally on the subject of Prosthodontics. He is a Diplomate of the American Board of Prosthodontics, a Fellow in the American College of Prosthodontists, and an active member in numerous organizations including the Academy of Osseointegration, the Academy of Fixed Prosthodontics, the American Dental Association, the California Dental Association and the Tri-County Dental society. Dr. Daher currently maintains a private practice limited to Prosthodontics in LaVerne, California.
Dr. Tony Daher began practicing dentistry in California in 1982 and his love for teaching promoted him to earn in 1984 a Master’s of Science degree in Medical Education from the University of Southern California (USC). Dr. Daher received a postgraduate certificate in Prosthodontics in 1988 from the University of California at Los Angeles (UCLA). He was the clinic director for the international student program at U.S.C. in 1991; and director of the Graduate Prosthodontic Program in Loma Linda University. Dr. Daher is currently an Associate Professor of Prosthodontics in the Center for Prosthodontics and Implant Dentistry at Loma Linda University (LLU). He has written many scientific and clinical articles, and has lectured nationally and internationally on the subject of Prosthodontics. He is a Diplomate of the American Board of Prosthodontics, a Fellow in the American College of Prosthodontists, and an active member in numerous organizations including the Academy of Osseointegration, the Academy of Fixed Prosthodontics, the American Dental Association, the California Dental Association and the Tri-County Dental society. Dr. Daher currently maintains a private practice limited to Prosthodontics in LaVerne, California.