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January 1996
Volume 30, Issue 1

THE EDITOR'S CORNER

The Doctor's Dilemma

EUGENE L. GOTTLIEB DDS

Is orthodontics predicated on greater mathematical precision than is inherent in the system? In 1965, Professor Lotfi Zadeh published a paper he called "Fuzzy Sets", after which what used to be called...

9

TECHNIQUE CLINIC

Determining Archwire Length

GAIL Y. PETTIS DDS, MMS

Clinicians often find it difficult to estimate the lengths of wire needed for archwires--particularly when using initial or multistranded wires, which may require extra length to engage severely malal...

14

Customized Protective Mouthguards for Orthodontic Patients

THEODORE P. CROLL, DDS, COSMO R. CASTALDI, DDS, MSD

An estimated 25 million American children between the ages of 6 and 18 are involved in athletic activities.1 The frequency of injuries to the mouth, face, and head ranges from high, as in baseball,2 t...

15

The Versatile Hinge Appliance

B.H. ELLINGSON DDS, MSD

Functional appliances have two major drawbacks: difficulty of fabrication and repair, and the need for patient compliance. The Hinge Appliance alleviates both of these problems while correcting many k...

20

Flexible Financing: A Paradigm Shift

CHARLENE WHITE BS

Businesses that refuse to adapt internally to external paradigm shifts can face swift consequences. Fifteen of the 75 companies that Peters and Waterman wrote about in their 1982 book, In Search of Ex...

28

THE READERS' CORNER

Surgical-Orthodontic Cases and HMO/PPO Patients

PETER M. SINCLAIR DDS, MSD

What percentage of your patients are surgical-orthodontic cases? Most of the respondents reported that between 4% and 5% of their active cases were surgical-orthodontic patients. The range was from le...

39

A Method for Correction of Open Bite

AYHAN ENACAR DDS, PhD, TÜLIN UGUR DDS, MS, SERDAR TOROGLU DDS, MS

Treatment of open bite is complicated by the difficulty of differentiating among many possible dentoalveolar and skeletal etiologic factors, depending on the patient's growth pattern.1 Cephalometric m...

43

Effects of Disinfection Procedures on Elastomeric Ligatures

DAVID MAYBERRY BA, ROGER ALLEN BS, JOHN CLOSE MPH, DON A. KINNEY DMD

Elastomeric ligatures are sold in strips, of which the orthodontist may use from one to 30 modules in any one appointment. This leaves the task of disinfecting the remaining modules before they can be...

49

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