New Technology

The Best of Both Dimensions
By Terry Myers, DDS

There are two sides to every story—even in the dental office. While some suggest that 2D x-rays show enough for general dentists, others who have used an in-office Cone Beam found it easy-to-use and so informative that they expanded their treatment options and are building their practices. I chose the best of both worlds—a Gendex GXCB-500 HD™ that contains both a 3D medium field of view scan and a 2D pan.

While it is true that for the most part a general dental practice utilizes 2D intra-oral images and pans, I like being able to use my 3D machine to capture clear and detailed traditional pans. The “500 HD” quickly and easily converts from its 3D scan mode into 2D pan mode by a simple software selection. 

For implants, I greatly benefit from having a 3D option. Even with clearest 2D images, it is impossible to discern the precise measurements of the width and height of bone, or to detect the exact position of the structures in relation to adjacent teeth, nerves, and sinuses. This information gives me additional confidence regarding possible complications. After viewing an image from any angle I want, rotating it, expanding it and zooming in on anatomical details, I know that I will not find insufficient bone after I have already flapped the tissue. Patients also appreciate that I am trying to avoid more invasive or unnecessary surgery.

My 3D machine also is flexible in scan sizes—from an 8 to 14 cm diameter with heights ranging from 8 cm down to 2 cm—to fit specific imaging needs from endodontics, implants and surgery to TMJ and airway analysis. Because of this ability to collimate (scale in height), scans can be sized to fit the particular view that best suits the procedure and the patient.

Obtaining “clean data” from a high definition scan, free of artifacts and fuzziness is helpful when transferring the scan into other software. Using the 3D image in conjunction with guided implant placement and other applications helps me reach my treatment goals more easily—and with less stress.

There are much more than two sides to the story of my 3D experience. In-office 2D pan and 3D imaging capability has given me the flexibility to begin a new chapter in my dental career. 

Dr. Myers completed his residency in advanced general dentistry and served as an instructor in the Advanced Education in General Dentistry Residency Program and director of the faculty practice at the University of Missouri-Kansas City School of Dentistry. He is a fellow in the Academy of General Dentistry, and a member of the Academy of Cosmetic Dentistry and Dental Sleep Disorder Society. Dr. Myers serves on the board of directors at Research Belton Foundation and participates the children’s dental care program. His private practice is in Belton, MO. Dr. Myers is a featured speaker at the 4th International Congress on 3-D Dental Imaging this year. He can be reached at office@keystone-dentistry.com

3D scan of area where most dentists work

True 2D pan from a 3D system

Dr. Myers