ZYGO Pro

Dr. Dan Holtzclaw
DDS, MS
+1 512-456-3161
Texas, USA

Dr. Dan Holtzclaw is a Diplomate of both the American Board of Periodontology and the International Congress of Oral Implantologists. Widely recognized as one of the world’s leading experts in full-arch implantology, Dr. Holtzclaw has authored over 60 articles in peer-reviewed journals, along with two textbooks: Pterygoid Implants: The Art and Science and Remote Anchorage Solutions for Severe Maxillary Atrophy.

He serves as Chief of the Advisory Board and ZygoPro Clinical Director for Noris Medical, where he leads educational programs on advanced implantology.

Dr. Holtzclaw has delivered more than 250 main podium lectures worldwide and has been named a “Leader in Continuing Dental Education” by Dentistry Today magazine for 18 consecutive years.

A proud veteran of the United States Navy, he concluded his service as the periodontist for the U.S. Navy Blue Angels Flight Demonstration Squadron.

Dr. Holtzclaw’s expertise focuses on advanced solutions for severe maxillary atrophy, including zygomatic, pterygoid, and remote anchorage implant techniques. Through his clinical leadership, research, and mentorship, he continues to shape the future of full-arch rehabilitation and implant dentistry worldwide.

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Dr. David Zelig is a board-certified Oral and Maxillofacial Surgeon. He has a Bachelor’s Degree from the University of Memphis and earned his Doctor of Dental Surgery degree from the University of Tennessee College of Dentistry, he then completed his residency in Oral and Maxillofacial Surgery at The Long Island Jewish Medical Center.

He maintained a private practice in Memphis, TN, active in craniofacial and trauma surgery, as well as oral surgery resident education.
After returning to NY, he has been active in facial trauma surgery, and major implant surgery. He is an oral surgeon with The Clear Choice Dental Implant Center, as well as the Smile By Design team.

Dr. Zelig is a Fellow of the American Association of Oral and Maxillofacial Surgeons, the American Dental Association, and the New York State Dental Association. In his free time, he enjoys time with family, weightlifting, cycling and guitar.

STUDIO GRECCHI - Zygo Pro Center

Graduation in Medicine and Surgery at Università degli Studi di Milano in 1981. Academic Specialisation in General Surgery and Maxillo-Facial Surgery at Università di Milano. Chief of the Jaw Reconstructive Surgery and Advanced Implantology Unit of the Center of Diagnostics and Treatment for Head and Neck Diseases at Istituto Ortopedico Galeazzi in Milan since 2000. Head of the Maxillo-Facial Surgery Unit at Istituto Ortopedico Galeazzi in Milan since 2002. Consultant of the Maxillo-Facial Surgery Unit at Istituto Stomatologico Italiano in Milan since 2017. Founding Partner of GISOS (Italian Association of Studies for Osseointegration and Osteosynthesis). Author and co-author of over 100 scientific publications. Lecturer on the occasion of national and international courses and conferences.