is a website created by dentists for dentists and is dedicated to advancing the application of the exciting 3M ™ True Definintion Scanner digital impression technology.

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Latest News

True Def Doctors Discuss Optimizing and Implementing Digital Technology

As opinion leaders in the field of dentistry, True Def Doctors John Weston, DDS and Chad C. Duplantis, DDS were recently interviewed by Inside Dentistry and Compendium magazines, respectively. The [...]
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Dr. Weston Demonstrates 3M Technology at the 2017 Digital Exchange Ski & Learn in Park City

This February brings much more than a potential change of weather conditions. Dr. John Weston, founder of, will be presenting at the Digital Exchange Ski & Learn in stunning [...]
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Dr. Weston Presents at 2016 Greater New York Dental Meeting

Dr. John Weston, founder of and trusted authority for 3M Dental, kicked off the holiday season in NYC as a featured presenter at the prestigious 2016 Greater New York [...]
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Two Firsts Unveiled During Dr. Weston Live Demo Presentation

Dr. John Weston, Founder of, has just returned from presenting a Live Patient Demonstration at the 2016 3M Digital Exchange. During his presentation, Dr. Weston introduced — for the [...]
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TrueDef Doctors Faculty to Present at 2017 3M Digital Exchange

TrueDef Doctors faculty members, Dr. John Weston, and Dr. Chad Duplantis are pleased to be a part of the prestigious 3M Digital Exchange conference taking place October 6-7 in Minneapolis. [...]
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Digital Scanning in 2015 – Five Industry Experts Share Their Experiences

Innovation and advancement in the realm of digital scanning is constant, and if you haven’t been paying close attention, it can be easy to get confused by all of the [...]
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Dr. John Weston Dispels Myths About Digital Impression Systems in the Journal of Cosmetic Dentistry

Designed with dentists and patients in mind, the 3M™ True Definition Scanner is set to become one of the most essential tools in the modern dental professional’s armamentarium. In an [...]
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Dr. John Weston to Teach 3M ESPE Espertise Educational Seminar

Can technology really make you a better dentist? On June 12th, I’ll be answering this question and more during a 3M™ ESPE™ Espertise™ Educational Seminar scheduled to take place at [...]
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About Our Experts

John F. Weston, D.D.S., F.A.A.C.D.

Dr. John Weston is the director of Scripps Center for Dental Care and is an “Accredited Fellow” with the American Academy of Cosmetic Dentistry. He is known as a leader in the dental field, and regularly makes presentations at international conferences. Dr. Weston has also published a variety of articles on advances in dentistry.

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Nicholas C. Marongiu, D.D.S.

Dr. Nicholas Marongiu specializes in general dentistry at Scripps Center for Dental Care and gives back through international community service. He is a member of several dental organizations, including the American Academy of Cosmetic Dentistry and the American Dental Association.

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Chad C. Duplantis, D.D.S

Dr. Chad Duplantis is a consultant for 3M ESPE Dental. He stays current with the latest developments in dental technology and is always seeking new learning opportunities to enhance his dental expertise. He practices general dentistry at Fossil Creek Dental Partners, LLP.

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Effie Habsha, BSc., D.D.S., Dip. Prostho., MSc., F.R.C.D.C.

Dr. Habsha received her Bachelor of Science degree and earned her DDS degree from the University of Toronto. Upon graduation, she completed a one year General Practice Residency at Mount Sinai Hospital, Toronto, ON.

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Paresh Shah, D.M.D.

Dr. Paresh Shah maintains a private practice in Winnipeg, Canada with a focus on implant, aesthetics and interdisciplinary care. He also serves as a founder and co-director for a Seattle Study Club in Winnipeg.

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Dr. Marc Robert DMD, FACD, MWCLI

Dr. Robert is a passionate dentist, educator and learner who graduated in 1988 from University of Montreal, Canada. He currently owns a successful multi service practice in Montreal suburbs.

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Dr. David G. Gratton

Dr. Gratton is Associate Professor, Department of Oral and Maxillofacial Surgery and Director, Division of Maxillofacial Prosthodontics at the University of Iowa. His prosthodontics practice incorporates multiple digital technologies.

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