Earl O. Williams

Implant transfer coping verification jig

Osseointegrated implants provide a treatment modality that should be considered for the edentulous and partially edentulous patient because of the high predictability of success. This technique article describes the fabrication of a verification jig that holds the transfer copings together in the same spatial relationship. The transfer copings can be splinted on the working cast and returned to the mouth to confirm the accuracy of the working cast.

Compatibility of reversible hydrocolloid duplicating materials and dental stones

Eight reversible hydrocolloid duplicating materials and six improved dental stones were tested for compatibility. Stone No. 1 appeared to be the most compatible with all duplicating materials and duplicating materials No. 5 and No. 7 the most compatible with all stones.

Radiographically detectable intraoral positional radiation stent.

The views expressed herein are those of the authors and do not necessarily reflect the views of the United States Air Force or the Department of Defense. *Lieutenant Colonel, U.S. Air Force, D.C.; Fellow, Maxillofacial Prosthetics. **Colonel, U.S. Air Force, D.C.; Assistant Chairman for Maxillofacial Prosthetics. acrylic resin and are designed to accurately direct the external radiation source. Positional stents are used to move or displace tissues out of the field of radiation. This clinical report outlines a technique used in the fabrication of a radiographically detectable intraoral positional radiation stent using a visible light-cured resin (Triad, Dentsply International Inc., York, Pa.). A 64-year-old white man was referred from radiation therapy for a radiation stent that would position the mandible and tongue out of the primary field of radiation. The patient had a 2 x 4 cm lesion of the soft palate extending from the uvula into the anterior right tonsillar pillar with central ulceration. A biopsy demonstrated invasive squamous

Olfaction through oral tracheal breathing tube

Cancer of the larynx has approximately a 90% cure rate if detected early. Advanced lesions are treated surgically by removing the larynx and creating a stoma that joins the trachea. Although speech can be learned, the patients ability to smell is permanently interrupted. This technique article describes fabrication of a simple device that permits olfaction by a laryngectomee.

Stabilized record base for maxillary removable partial denture obturator

Accurate maxillomandibular jaw relation records are enhanced by a stabilized framework used to support the occlusal rim and recording medium. Stability of the framework is often lost on the defect side because of the size of the surgical defect and/or number of missing teeth. This article introduces a technique that uses a record base stabilized with a soft resilient material that permits easy removal and replacement of the framework on the altered master cast without damage.

Restoring retention form to rimmed trays

Fig. 1. Solder obliterating under&t on new Rim-Lock tray (arrows). sion material inside the tray. During the manufacturing process, the bulk of the solder used to fix the wire to the tray often obliterates any form of retentive locking (Fig. 1). New trays should be carefully examined before use to assure proper retention is available. When excess solder is present, removal with a No. 33% or No. 2 bur will restore proper function to the tray (Fig. 2).