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January 2018
Volume 52, Issue 1

THE EDITOR'S CORNER

The Digital Revolution

ROBERT G. KEIM DDS, EdD, PhD

My greatest joy in life is being a grandparent. I have seven grandchildren, with another on the way, and—to use an old phrase—they are the lights of my life. Unfortunately, when my children grew up, t...

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THE READERS' CORNER

3D Printers

PETER M. SINCLAIR DDS, MSD

(Editor’s Note: The Readers’ Corner is a regular feature of JCO in which orthodontists share their experiences and opinions about treatment and practice management. Questions are sent periodically to ...

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THE CUTTING EDGE

Impact of Orientation on Dimensional Accuracy of 3D-Printed Orthodontic Models

MEGAN M. SHORT BS, CHRISTIAN S. FAVERO DDS, MSD, JERYL D. ENGLISH DDS, MS, F. KURTIS KASPER PhD

This study from Short, Drs. Favero, English and Kasper, was designed to evaluate the effect of model orientation in a stereolithographic 3D printer on the dimensional accuracy of the printed models in specific areas. Flat, perpendicular, and angulated orientations are compared in terms of accuracy and cost.

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BOOK REVIEWS

Orthodontic Therapy: Fundamental Treatment Concepts

JAE HYUN PARK DMD, MSD, MS, PhD

ANDREA WICHELHAUS, DDSWith Tena Eichenberg, MD 580 pages. 3,922 illustrations. $249.99. 2017.Thieme Publishers, 333 Seventh Ave., New York, NY 10001. (800) 782-3488; www.thieme.com. This textbook sepa...

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CAD/CAM Software for Three-Dimensional Printing

NEAL D. KRAVITZ DMD, MS, CHRISTIAN GROTH DDS, MS, TOM SHANNON DDS, MDS

Digital models require several stages of preparation prior to 3D printing. Drs. Kravitz, Groth, and Shannon review the steps needed to convert a raw, exported STL file to a processed digital model, including cleaning, repair, base modification, hollowing, and labeling.

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Incorporating Three-Dimensional Printing in Orthodontics

CHRISTIAN GROTH DDS, MS, NEAL D. KRAVITZ DMD, MS, JEFFREY M. SHIRCK DDS, MS

A fully digital office laboratory can improve patient comfort while reducing the number of appliance-delivery appointments and enhancing practice efficiency. Drs. Groth, Kravitz, and Shirck review space requirements, workflow, digital case submission, and scheduling protocols for appliance delivery.

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Digital Workflows in Orthodontics

LARS R. CHRISTENSEN DDS, MSc, PhD, MOrtho RCS

Dr. Christensen provides an overview of the digital workflow from intraoral scanning and treatment planning to fabrication and delivery of expanders, skeletal anchorage devices, removable and functional appliances, sleep-medicine devices, indirect-bonding trays, aligners, and retainers.

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PRACTICE PROFILE

Cosse and Silmon Orthodontics

CHRISTOPHER C. COSSE DDS, JEFFREY W. SILMON DDS, ROBERT G. KEIM DDS, EdD, PhD

Leading-edge technologies, constant innovation, and patient education play significant roles at this digital, two-doctor practice in Shreveport, Louisiana. JCO Editor Robert Keim interviews Drs. Cosse and Silmon on their practice philosophy, management methods, and marketing techniques.

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PEARLS

Virtually Eliminating Undercuts in Invisalign's ClinCheck

CHRISTOPHER N. CETTA DMD

Posterior restorations can result in undercuts that cause the edges of Invisalign trays to fold inward, making it difficult to insert or remove aligners. This Pearl from Dr. Cetta shows how to use ClinCheck to alter the shape of the simulated gingiva around such a restoration.

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Continuing Education for January 2018 (questions only)

Click here to download a PDF of the printed questions from the journal for reference. CE tests must be taken online. See the link to continuing education on the menu bar at the top of the screen.

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Product News Published in January 2018

PRODUCT NEWS is presented as a service to the reader and in no way implies endorsement by JCO.

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