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August 1985
Volume 19, Issue 8

THE EDITOR'S CORNER

Headgear Safety

EUGENE L. GOTTLIEB DDS

Headgear SafetyOnce again there has been a report of serious eye injury from dislodged headgear appliances. This time, in the May Archives of Ophthalmology, Dr. Gary Holland reports injury to three ey...

549

Invisible Retainers

JAMES A. MCNAMARA DDS, PhD, KAREN L. KRAMER CDA, JAMES P. JUENKER

The invisible retainer of Ponitz1 can be used either at the end of orthodontic treatment or as a transitional retainer between certain stages of treatment. For example, a phase of fixed appliance ther...

570

Positive lntermaxillary Pressure Appliance

ELIAKIM MIZRAHI BDS, FDS, DORTH, MSC, PhD

I have designed a functional appliance specifically to correct and control the skeletal and dental problems related to excessive vertical growth of the mandible, or "long face syndrome".1-3 Few applia...

579

The Lateral Pterygoid Muscle: Fact and Fiction

LARRY W. WHITE DDS

No feature of the temporomandibular joint anatomy and physiology is more misunderstood than the lateral pterygoid muscle. Although many consider this to be a single muscle, the lateral pterygoid is, i...

584

TECHNIQUE CLINIC

Archwire Engagement on Posterior Fixed Bridges

ATHANASIOS E. ATHANASIOU DDS, KOUROSH ZARRINNIA DMD, MS, KHOSROW AZIZI DMD, MS

We have developed an appliance for managing orthodontic treatment of patients with posterior fixed bridges. The technique is simple, does not damage the bridge, and can be used with any edgewise techn...

588

TECHNIQUE CLINIC

Indirect Band for Fixed Bridgework

BRUCE S. HASKELL DMD, PhD, J. JOSEPH HANNAH DDS

We have devised an indirect method for fabricating a custom band for a fixed bridge. This procedure minimizes the large cement lines that are usually seen with the direct method, and insures an improv...

590

Relaxation of Elastomeric Chains

DENNIS M. KILLIANY DDS, MSD, JOHN DUPLESSIS DMD

Ideally, an elastomeric chain should undergo minimal relaxation and maintain a constant force level. However, there is usually a relaxation of more than half of the force in the first 24 hours, follow...

592

Safeguarding Against Collection Problems

CHARLENE LEFLER RDH, BS

Problems with collection of orthodontic fees often start with the attitudes of the orthodontist and staff. The practitioner must have confidence in his or her clinical ability and must believe that th...

594

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