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Meet Dr. Guillaume

Dr. Didier Guillaume, D.M.D




  • Georgia Dental Board

  • New Jersey Dental Board

  • Board Eligible for Prothodontist

  • Invisalign Orthodontics

  • Nobel Biocare Implant System

  • Tulsa System Rotary

Professional Memberships:

  • American College of Prosthodontists

  • American Dental Association

  • Georgia Dental Association

  • National Dental Association

  • Kiwanis Service Organization

  • International Lecturer Apsun Dental Implant Research & Education Center

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Professional Background


Didier Guillaume, D.M.D., often referred to as Dr. G by his patients, is a true smile designer.  Guillaume's specialties include complex, high-restorative, cosmetic, and implant dentistry.  


Dr. G received his dental degree from the University of Medicine and Dentistry of New Jersey in 1999, and then attended the School of Biomedical Sciences for a year before attaining his certificate in Prosthodontics from the University of Medicine and Dentistry of New Jersey in 2002.

While attaining his certificate in prosthodontics and implant dentistry, Guillaume completed clinical research on the revolutionary implant techniques for the Biohex Implant Company.  He presented projects at the International Academy of Dental Research in Washington, DC and at the American College of Prosthodontists meeting.  In addition, he has lectured at the Northeast Implant Symposium and for continuing education seminars for general dentists.  

While in his residency, Dr. G was admitted to the Gamma Pi Delta Prosthodontic Honors Society and also became a member of the American College of Prosthodontists. 

When relocating to Atlanta in 2002, Dr. Guillaume was hired as one of the head Prosthodontists for a 17 practice dental group, and then worked for a 3 practice dental group while being part-owner of a private practice in the Atlanta area.

He has since ventured out on his own and created Astoria Dentistry, LLC where he takes great pride in the science and artistry that goes into every bright smile.

Professional Experience


2009 - Present
Founder of Astoria Dentistry, LLC


2004 - Present

Co-Chairman of Implant Board at Nanston Member of Continuing Education Committee


2005 - 2009

Prosthodontist at Goldstein Center for Aesthetic and Implant Dentistry

2003 - 2005

Prosthodontist for Nanston Dental Group on Corporate Square


2002 - 2003

GP at Atlantic Dental Centers owned by Dr. Alex Hall - East Orange, NJ


GP at Gentle Family Dental - Hackensack, NJ

1996 - 1998

DA at Atlantic Dental Centers



Post-Graduate Prosthodontist at University of Medicine and Dentistry of New Jersey (UMDNJ)


School of Biomedical Sciences at UMDNJ


Dental School at UMDNJ


University of Maryland Baltimore County

Additional Training


Spring 2004
Loma Linda University Implant Surgical Training for Prothodontist


Winter 2002

Surgical/Restorative Training on Biohex Implant System



  • Prosthodontics

  • Full Mouth Rehabilitations

  • Cosmetics

  • Implantology (using all major implant systems)

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2010 - present

2010 - present

Financial Options


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