Adding retention loops to partial dentures

Adding retention loops to partial dentures Jacob Lieberman,

D.D.S., and Martin

Brooklyn Veterans Administration

Weinstein,

Medical Center, Brooklyn, N.Y.

Ah e ch an-s1 ’ ‘d e modification of a partial denture to receive an additional tooth is a time-saving procedure. METHOD 1. Seat the denture in the mouth, make an alginate (irreversible hydrocolloid) “pick-up” impression. Pour a cast and separate (Fig. 1).

Fig. 1. Cast with partial

denture

Fig. 2. Wire loop adapted, soldered ished. 526

D.D.S.

in place.

in place, and pol-

2. Form a piece of .036-gauge orthodontic wire into a U shape. It must be long enough to extend from the edentulous space on the cast to overlap the major connector by 3 to 4 mm (Fig. 2). 3. Use a Carborundum disk to cut two shallow grooves in the major connector to receive the “leg” portions of the wire, and clean the contact areas with a rubber wheel. 4. Use an orthodontic welding and soldering machine (Rocky Mountain 660, Rocky Mountain Prod.

Fig. 3. Welding and soldering current capability.

machine with adjustable

Fig. 4. Fluoride paste flux (left), roll of .025-gauge silver orthodontic solder (right), soft bristle brush (top), and .036-gauge orthodontic wire loop (bottom). APRIL

1987

VOLUME

57

NUMBER

4

ADDING

RETENTION

LOOPS TO PARTIAL

DENTURES

Co., Denver, Colo.) (Fig. 3) to spot weld the loop in place. 5. Remove oxide with a rubber wheel, apply fluoride flax with a brush (Fig. 4) and use a pencil to outline the area to be covered with solder. The pencil mark serves as an antiflux. 6. Use the orthodontic welding and soldering machine and apply the soldering current until .025-gauge silver orthodontic solder flows into the joint.

Authors:

Before

7. Clean and polish the soldered joint (Fig. 2) and add the tooth to the denture with autocuring acrylic resin. Refrint reyue.rts to: DR.JACOB LIEBERMAN BROOKLYNVETERANSADMINISTRATIONMEDICAL CENTER 800 POLY PLACE BROOKLYN,NY 11209

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Please refer to the revised EDITORIAL COMMUNICATIONS page of the JOURNAL OF DENTISTRY. Changes include a limit to the numher of authors in the byline of an article, adoption of the Vancouver style for references in biomedical journals, and the titles of guidelines available for preparing manuscripts, from the Journal’s editorial staff. You will also want to be aware of the procedures regarding free color illustrations in the Journal. Your use of this new information will facilitate the peer review of your article. PROSTHETIC

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