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December 2019
Volume 53, Issue 12

THE EDITOR'S CORNER

The Miniscrew Herbst

ROBERT G. KEIM DDS, EdD, PhD

While claims of the popularity of different appliances are always a little suspect—usually due to a lack of rigorous scientific method in the survey—it cannot be denied that the Herbst appliance is on...

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The Biomechanics of Aligner Orthodontics in Open-Bite Cases

KENJI OJIMA DDS, MDSc, CHISATO DAN DDS, HITOSHI WATANABE DDS, PhD, YURIKO KUMAGAI DDS, RAVINDRA NANDA BDS, MDS, PhD

Dr. Ojima and colleagues describe three methods of correcting anterior open bite with the Invisalign system, depending on the clinical situation. Biomechanics are illustrated for cases requiring various combinations of anterior extrusion, molar intrusion, and maxillary molar distalization.

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2019 JCO Orthodontic Practice Study Part 3: Practice Growth and Staff Data

ROBERT G. KEIM DDS, EdD, PhD, DAVID S. VOGELS III, PHILIP B. VOGELS

The conclusion of this three-part report examines practice growth in terms of case starts and gross income over the past two years, as well as expectations for the next two years. Staff employment patterns, salaries, and benefits are also covered.

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A Superelastic Loop for Uprighting Mesially Impacted Lower Second Molars

FELICE BAGALÀ DDS, MS, GIULIANO B. MAINO MD, DDS, MS, GIOVANNA MAINO DDS, MS, DOMENICO DALESSANDRI DDS, MS, PhD

The original Loca-System used a loop of rectangular superelastic nickel titanium wire to distalize maxillary molars. This modification of the loop can be used to recover and upright a deeply impacted mandibular second molar, as demonstrated in an adult patient.

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An Innovative Light-Curing Unit for More Efficient Bonding

MYSURU VASUDEVAMURTHY AKSHATHA BDS, MDS, GUDLI MALLIKARJUN SHASHIKUMAR BDS, MDS, WADDARAMANE FAKKIRSAB BDS, MDS, ANUP SINGHVI BDS, MDS

The authors introduce FlashCure, a light-emitting diode unit that can cure composite on multiple teeth at the same time. An in vitro test shows greater shear bond strengths from the prototype FlashCure device than from a commercially available light-curing unit.

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CASE REPORT

Herbst Appliance Supported by Four Miniscrews

ANTONIO MANNI DMD, MS, CARMEN CERRUTO DDS, MAURO COZZANI DMD, MScD

The Herbst appliance, although reliable and well tolerated, has been associated with such adverse dental effects as proclination of the lower incisors and palatal inclination of the upper incisors. Drs. Manni, Cerruto, and Cozzani employ skeletal anchorage from four miniscrews to mitigate these effects.

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PEARLS

Early Class III Treatment with Rapid Palatal Expansion and a Modified Lower Essix Retainer

JEFFREY LEE DDS, MS

Dr. Lee shows how to use Class III elastics, attached from a maxillary expander to buttons on the lower lateral incisors, and a lower Essix retainer to correct an underbite during Phase I interceptive treatment without headgear.

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Continuing Education from December 2019 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.

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Product News in December 2019 Issue

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

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