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May 2008
Volume 42, Issue 5

THE EDITOR'S CORNER

The Biomechanics of TADs

ROBERT G. KEIM DDS, EdD, PhD

Ever since the invention of the first orthodontic appliance, an understanding of the physics of tooth movement has been a prerequisite for the successful practice of orthodontics. The science of biome...

261

Biomechanics of Skeletal Anchorage, Part 3: Intrusion

HUGO J. DE CLERCK DDS, PhD, HILDE M. TIMMERMAN DDS, MARIE A. CORNELIS DDS, PhD

Deep bite is usually corrected by incisor intrusion, often by means of segmented arch mechanics with molar anchorage.1-3 With the introduction of skeletal anchorage, the molars can also be intruded to...

270

THE READERS' CORNER

Soft-Tissue Lasers and Office Celebrations

JOHN J. SHERIDAN DDS, MSD

(Editor’s Note: The Readers’ Corner is a quarterly feature of JCO in which orthodontists share their experiences and opinions about treatment and practice management. Pairs of questions are mailed per...

279

Treatment of Skeletal-Origin Gummy Smiles with Miniscrew Anchorage

JAMES CHENG-YI LIN DDS, CHIN-LIANG YEH DDS, MS, ERIC JEIN-WEIN LIOU DDS, MS, S. JAY BOWMAN DMD, MSD

Excessive gingival display during smiling, or a "gummy smile", may result from a variety of etiological factors. Proper diagnosis is critical before beginning treatment.1-10 In adult patients, when th...

285

CASE REPORT

Treatment of Class III Anterior Crossbite Using Güray Bite Raisers

HATICE GOKALP DDS, PhD, OZGE USLU DDS

Class III malocclusion may be associated with mandibular prognathism, maxillary retrognathism, or both.1-7 Class III maxillary retrognathism generally involves anterior crossbite, which must be opened...

297

TECHNIQUE CLINIC

Uprighting an Impacted Second Molar with a Spring Anchored to a Composite Support

ALVARO F.C. FERNANDES DDS, MSC, DANIEL J. FERNANDES DDS, CÃTIA QUINTÃO DDS, MSC, PhD, ALVARO MENDES DDS, MSC, PhD

This article describes the use of a removable orthodontic appliance with a specially designed spring, anchored to a composite support, to upright a severely impacted second molar. Procedure The follow...

301

A New Spring for Correction of Maxillary Canine-Premolar Transposition

MARCELLA BAITELLI BRUNO DDS, MÁRCIO BARROSO SALOMÃO DDS, MS, OSWALDO DE VASCONCELLOS VILELLA DDS, MS, PhD, JOSE NELSON MUCHA DDS, MS, PhD

The JOB Spring (the acronym is formed from the names of the last three authors of this article) was developed to facilitate correction of partial canine-first premolar transposition in the maxillary a...

303

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