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August 2022
Volume 56, Issue 8

THE EDITOR'S CORNER

Invisalign Transparency

NEAL D. KRAVITZ DMD, MS

As the new Editor-in-Chief, I am frequently asked about my vision for JCO moving forward. Perhaps the most notable change with regard to content will be an increase in case reports and technique artic...

446

An Overlay Arch for Maxillary and Mandibular Transverse Discrepancies

BYUNGTAEK CHOI DDS, MS, PhD, JAE HYUN PARK DMD, MSD, MS, PhD, IVAN A. HALIM DMD, MPH, MS, HOJAE CHOI DDS, MS

Drs. Choi, Park, Halim, and Choi demonstrate how to use a heavy stainless steel overlay wire to achieve dental expansion or constriction in either arch. The overlay is either inserted into the molar headgear tubes or attached to the main archwire.

447

ALIGNER CORNER

Prospective Multicenter Investigation of Invisalign Treatment with the Mandibular-Advancement Feature: An Interim Report

BARRY J. GLASER DMD, SANDRA KHONG TAI BDS, MS, REGINA BLEVINS DDS, MS, SAM DAHER DDS, MSc

In an ongoing study by Drs. Glaser, Tai, Blevins, and Daher, the effectiveness of Invisalign’s MA protocol is evaluated as an alternative to removable functional appliances in growing Class II patients. Results include a significant reduction in overjet.

458

ALIGNER CORNER

Treatment Timing Considerations for Mandibular Advancement with Clear Aligners in Skeletal Class II Malocclusions

CHIARA PAVONI DDS, MS, PhD, ROBERTA LIONE DDS, MS, PhD, LETIZIA LUGLI DDS, MS, SAVERIA LOBERTO DDS, MS, PAOLA COZZA MD, DDS, MS

Using the case of a 12-year-old male with a skeletal Class II malocclusion, the authors measure the effects of MA aligners during the pubertal growth peak. Over 36 weeks, with trays changed weekly, the Precision Wings provide a gradual advancement of 2mm for every eight aligners.

464

Upper-Incisor Intrusion with Axial Control Using a Sectional Appliance and Indirect Mini-Implant Anchorage

ELIA DIANA BOANGAR DMD

Dr. Boanger shows how maxillary incisors can be intruded as a block with progressive step-up bends in a sectional wire, using indirect anchorage from buccal mini-implants. The intrusive force produces incisor proclination for arch lengthening, and a buccal root-torquing bend then provides axial control.

473

PEARLS

Derotation of an Upper Molar Using Cantilever Mechanics

SAMER MHEISSEN DDS, HARIS KHAN BDS

A maxillary first molar sometimes erupts with a mesial-in rotation. This simple cantilever spring is inserted in the molar tube from the distal to rotate a single molar mesial-out, using anchorage from the main archwire on the same side.

483

CASE REPORT

Treatment of an Adolescent Special-Needs Patient Using Invisalign's Mandibular-Advancement Protocol

IOANNA K. GIDARAKOU DDS, PhD, VASILEIOS TZATZAKIS DDS

This 15-year-old Class II patient presented with complex medical problems including paralysis of the lower extremities and the need for a kidney transplant. She is successfully treated during a 23-month period using the MA protocol and Class II elastics.

487

Product News in August 2022 Issue

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

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