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July 2021
Volume 55, Issue 7

THE EDITOR'S CORNER

The Rise of 3D Printers

ROBERT G. KEIM DDS, EdD, PhD

My March 2020 Editor’s Corner, entitled “The 3D Printing Revolution,” was written just after the first time I witnessed a 3D printer being used routinely in a private orthodontic practice. My initial ...

383

CAD/CAM-Guided Microscrew Insertion for Horseshoe Distalization Appliances

ORONZO DE GABRIELE DDS, MD, GIANLUCA DALLATANA DT, SIVABALAN VASUDAVAN BDSc, MDSc, MPH, BENEDICT WILMES DMD, MSD, PhD

The horseshoe palatal anchorage plate relies on precise microscrew positioning to facilitate three-dimensional control of tooth movement, while simplifying the insertion procedure and reducing patient discomfort. Dr. De Gabriele and colleagues present two typical skeletal Class II cases.

384

Regeneration of the Anterior Palatal Alveolar Cortex after Treatment of Bimaxillary Protrusion

SHIVANI SINGH BDS, MDS

Excessive incisor retraction in a bimaxillary protrusive case can lead to adverse iatrogenic sequelae. Dr. Singh uses cone-beam computed tomography to document alveolar bone remodeling after treatment of a patient whose upper incisors were retracted bodily past the palatal cortical plate.

398

THE CUTTING EDGE

Trends in the Use of 3D Printing Technology Among Practicing Orthodontists and Orthodontic Residency Programs

EMILY POULOS DDS, JULIE BARRONS OLSEN DMD, JAE HYUN PARK DMD, MSD, MS, PhD

Drs. Poulos, Barrons Olsen, and Park designed this study to investigate the use of in-house 3D printers by private practices and academic residency programs. Preferred printers and software programs are surveyed, along with common applications, barriers to purchase, and predictions for the future.

413

Strategies for Compensatory Orthodontic Treatment of Adult Skeletal Open Bite

FABRICIO PINELLI VALARELLI DDS, MSc, PhD, MARIA FERNANDA ANTONIO SILVA DDS, LUCIANO IMAI DDS, MSc, GUILHERME JANSON DDS, MSc, PhD, KARINA MARIA SALVATORE FREITAS DDS, MSc, PhD

Dr. Valarelli and colleagues review effective methods for compensatory fixed-appliance treatment of hyperdivergent adult patients with severe skeletal anterior open bites, including first-molar extractions and the use of lingual spurs and intermaxillary elastics. Their protocol is illustrated in a sample case.

419

CASE REPORT

Molar Intrusion Using Clear Aligners Without Additional Anchorage Devices

FERRUCCIO TORSELLO DDS, PhD, MATTEO TURCHI DDS, MASSIMO CORDARO MD, DDS

Several authors have contended that clear aligners can provide enough vertical control for maxillary molar intrusion without miniscrew anchorage. In this case, an upper first molar is intruded using only aligners and bonded attachments, while bleaching and prosthetic restoration are performed during the final stage.

429

PEARLS

Posterior Functional Bite Turbos for Sagittal Correction

DALIA EL-BOKLE DDS, MSc, PhD

This Pearl describes the application of functional resin turbos on the upper and lower premolars to help correct a Class II malocclusion. When used in conjunction with fixed appliances and elastics, their effect is similar to that of a Twin Block.

435

Continuing Education from July 2021 Issue (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.

439

Product News in July 2021 Issue

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

441

CASE REPORT

Surgical-Orthodontic Treatment of a Patient with Severely Asymmetrical Skeletal Class III Dentofacial Deformity

JIYU SONG MDS, XINGFU BAO DDS, PhD, LI CHEN, CHENMENG LU MDS, GUOMIN WU DDS, PhD, MIN HU DDS, PhD, YI ZHANG DDS, PhD

The authors demonstrate how accurate evaluation of an asymmetrical skeletal Class III can enable comprehensive surgical-orthodontic treatment to correct the skeletal discrepancies in all three planes of space, producing optimal occlusal function, facial esthetics, and long-term stability.

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