J. William Robbins, D.D.S., M.A., maintains a full-time private practice and is a Clinical Professor in the Department of Comprehensive Dentistry at the University of Texas Health Science Center at San Antonio Dental School. He graduated from the University of Tennessee Dental School in 1973. He completed a rotating internship at the Veterans Administration Hospital in Leavenworth, Kansas and a 2-year General Practice Residency at the V.A. Hospital in San Diego, California. Dr. Robbins has published over 80 articles, abstracts, and chapters on a wide range of dental subjects and has lectured in the United States, Canada, Mexico, South America, Europe, Middle East, China, and Africa. He coauthored a textbook, Fundamentals of Operative Dentistry – A Contemporary Approach, which is published by Quintessence, and is in its 4th edition. He recently co-authored a new textbook, Global Diagnosis – A New Vision of Dental Diagnosis and Treatment Planning, which is also published by Quintessence. He is a diplomate of the American Board of General Dentistry. He is past president of the American Board of General Dentistry, the Academy of Operative Dentistry, the Southwest Academy of Restorative Dentistry, and the American Academy of Restorative Dentistry.

Dr. Jim Otten maintains a full time private practice in Lawrence, Kansas. He graduated from the University of Missouri-Kansas City School of Dentistry in 1981. He completed a General Practice and Hospital Dentistry Residency at the Veterans Administration Medical Center in Leavenworth, Kansas in 1982. Dr. Otten completed the entire educational series at the Dawson Academy and at the Pankey Institute. In addition, he completed the complete series at the Piper Education and Research Center. He served as Visiting and Lead Faculty at the Pankey Institute from 1996-2018, and was a member of the Curriculum Development Committee from 1996-2012. He has also served as Visiting Faculty at Spear Education in Scottsdale, Arizona since 2014. He has lectured both nationally and internationally on Occlusion, TMD/Occlusal Splint Therapy, Optimal Restorative Care and the Concept of Naturally Adaptive Dentistry. He is a Fellow in the American College of Dentists, a member of the Class One Triple Plus Cub at the Pankey Institute, and a member of the American Academy of Restorative Dentistry.

Dr. DeWood has been practicing restorative dentistry since 1980 when he earned his DDS from Case Western Reserve University. He earned an MS in Biomedical Sciences from The University of Toledo College of Medicine in 2004. He has been actively involved in teaching since 1992, and in 2003 teaching became his primary activity when he accepted a position as Clinical Director at The Pankey Institute. In 2008 he relocated to Seattle to serve as president of The Seattle Institute, Dr. Frank Spear’s education company. As one of the two founding clinicians of Spear Education, the other being Dr. Spear, he relocated to Phoenix to serve as executive vice president of the newly formed Spear Education continuing education center in Scottsdale. A position he held for more than 15 years.  Spear Education became an internationally recognized dental continuing education company and a leader in exceptional dental continuing education. It was sold to a venture capital firm and his position was eliminated in 2023. Gary has also held positions as assistant professor at the Arizona School of Oral and Dental Health; associate professor at the University of Tennessee School of Dentistry; and assistant professor at the University of Toledo College of Medicine. Today he is active in several educational groups, the most noteworthy being this one, Global Diagnosis Education. He is active with speaking engagements and works with individual and group practices in consulting and coaching. He continues to see patients in private practice with his practice partner Dr. Lee Ann Brady at Desert Sun Smiles in Glendale, Arizona. Gary and Cheryl, who retired from orthodontic practice in 2023, have been married since 1978 and reside in Cave Creek, Arizona.