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March 1991
Volume 25, Issue 3

THE EDITOR'S CORNER

The More Things Change

LARRY W. WHITE, DDS, MSD

The More Things Change One of the more interesting aspects of editing JCO is the discovery, through the various surveys we publish, of how orthodontists practice. The 1990 Study of Orthodontic Diagnos...

133

1990 JCO Study of Orthodontic Diagnosis and Treatment Procedures, Part 1: Results and Trends

EUGENE L. GOTTLIEB DDS, ALLEN H. NELSON PhD, DAVID S. VOGELS III

Editor's note: Parts 2 and 3 of this series are published in the April and May 1991 issues of JCO. The 1986 JCO Study of Orthodontic Diagnosis and Treatment Procedures was the first comprehensive nati...

145

Derotating a Tooth with a Lingual Rotation Tie

PIETER W. VAN HEERDEN, MDent, JOZUA P. ROUX , MDent

The patient in the early or late mixed dentition who presents with a severely rotated tooth may not require immediate full treatment, but esthetic considerations usually dictate correction of the prob...

160

Convertible Haas-Type Rapid Palatal Expander

CLARK C. BROWNE, DMD, DERYCK I. SUTTON, BDS, DAVID A. TWESME, DMD

As early as the 1920s, Mesnard demonstrated radiographically that the midpalatal suture could be separated using a fixed appliance, and that the separation filled in with bone over four to six weeks.1...

163

A Cephalometric Analysis Based on Natural Head Position

ANTHONY D. VIAZIS, DDS, MS

Traditional cephalometric analyses use the sella-nasion or Frankfort horizontal planes as reference lines.1-4 A number of investigators have expressed concerns about the use of these planes.5-8 Ellis ...

172

TECHNIQUE CLINIC

Stabilizing the Wraparound Wire of a Hawley Retainer

PD DR. RALF J. RADLANSKI, S. HORSCHELMANN

The removable Hawley retainer sometimes requires stabilization of its wraparound wire. This is usually done with a length of wire that is soldered to the wraparound wire posterior to the canines and a...

182

THE READERS' CORNER

PETER M. SINCLAIR, DDS, MSD

Topics include office design and cosmetic finishing.1. What do you consider the most creative idea you have used in office design? There was a wide variety of responses to this question. A sample of t...

183

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