Mint-flavored Robert B. Stevenson, Columbus, Ohio

cotton rolls D.D.S., M.S., M.A.

Pressure-indicator paste is often used by dentists while making adjustments to denture bases. Typically, the paste is applied to the tissue surface of the denture before its insertion. Two small pieces of moist cotton roll are placed in the patient’s mouth and the patient is instructed to chew the cotton pieces between the molars, one piece on either side. The denture is then removed and inspected for signs of excessive pressure. Patients commonly remark about the tastelessness of the cotton rolls. Mint flavoring can be added to ordinary cotton rolls by the following method: 1. Cut approximately 50 cotton rolls into pieces one quarter to one half inch in length by using bandage scissors or similar utensil.

Reprint

requests

to:

DR. ROBERT B. STEVENSON 3600 OLENTANGY RIVER RD. COLUMBUS, OH 43214

10/4/22648

Simplified

2. Place one drop of peppermint oil (Lorann Oils, Inc., Lansing, Mich.) on one piece of cotton roll and mark it with an ink spot. Place the piece in the bottom of a suitable container. The container must have a lid and should be just large enough to hold all of the cotton pieces. A plastic denture cup (Den-Shur-Cup, Rugby Labs, Inc., Rockville Centre, N.Y.) works well. 3. Place the remainder of the cotton pieces in the container and close the lid. After 1 week all of the cotton pieces will have a mild peppermint flavor. Once the cotton pieces have acquired the mint flavor, the piece with the ink spot should be removed and discarded to prevent accidently giving it to a patient for chewing.

method for placing

glass ionomer

cement bases

Elias Grego, D.D.S. Tecamachalco, Mexico When teeth are prepared according to the concept of minimal tooth reduction, it is often difficult to apply a pulp-protecting product such as glass ionomer cement at 1014122646

the bottom of the cavity without touching the walls of the preparation. Excess glass ionomer cement on the walls of a narrow cavity preparation is difficult to remove. This problem can be easily solved by using a syringe to place the base in the bottom of the tooth preparation. PROCEDURE 1. Isolate the tooth with a rubber dam. 2. Prepare the tooth and remove the decay (Fig. 1). 3. Clean the tooth with pumice that does not contain fluoride; wash and dry it.

Fig. 1. Prepared tooth isolated with rubber dam and clamp. 740

Fig. 2. Centrix C-R syringe with plastic tip. DECEMBER

1990

VOLUME

84

NUMBER

6

TIPS

FROM

OUR READERS

6. Loaded tip in syringe ready to use for placing base in bottom of cavity preparation.

Fig.

3. Using cement spatula to load plastic tip with glass ionomer.

Fig.

Fig. Fig.

7. Glass ionomer cement injected into preparation.

4. Rubber plunger is forced into loaded plastic tip.

6. Top, Plastic tip and plastic plunger fastened with umbilical line, not recommended for this procedure. Botton, Recommended plastic tip with separate rubber plunger. Fig.

THE

JOURNAL

OF PROSTHETIC

DENTISTRY

8. Glass-ionomer cement evenly distributed ball applicator.

Fig.

with

741

TIPS

4. Mix the glass ionomer cement (Vitrabond, 3M Co., St. Paul, Minn.). 5. Use the mixing spatula to load the tip of a Centrix C-R syringe (Centrix, Inc., Stratford, Conn.) (Figs. 2 and 3). 6. Insert the rubber plunger into the tip (Fig. 4). Note: The plastic tips can be purchased with a plastic plunger fastened to the tip with an umbilical. This type is not recommended because it is difficult to use, is wasteful, and does not deliver much material at the tip. It is best to buy the plastic tips and separate rubber plungers. These work more smoothly and deliver ample material (Fig. 5). 7. Insert the tip into the barrel of the syringe (Fig. 6). 8. With light pressure, inject the glass ionomer cement into the cavity from the bottom up (Fig. 7).

Copies of Prosthodontics

FROM

OUR READERS

9. Use a small ball applicator to distribute the base evenly (Fig. 8). 10. Cure the material. 11. Fill the cavity with the selected filling material, cure, finish, and polish it. This procedure can be used with a variety of cavity base materials and will speed the application of liners. Reprint

requests

to:

DR. ELUS Gm S. Av. DE LAS FUENTES 41-A 1102 TECAhtACHALCO C.P. 53950 MEXICO

21 symposium

proceedings

available

Copies of the September 1990 issue of THE JOURNAL OF PROSTHETIC DENTISTRY (vol. 64, No. 3), which carried Proceedings of Prosthodontics 21, a national symposium on prosthodontics sponsored by the Federation of Prosthodontic Organizations October l-5,1989 at Mayo Medical Center, Rochester, Minn., are available for purchase from the publisher, Mosby-Year Book, Inc., at a cost of $6.50. (Foreign postage is not included.) Quantity discounts are available. Please contact Katherine Carter, Director of Subscription Services, Mosby-Year Rook, Inc., 11830 Westline Industrial Drive, St. Louis, MO 63146-3318, or call (314)872-8370, ext. 7422.

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DECEMBER

1BOO

VOLUME

64

NUMBRR

6

Simplified method for placing glass ionomer cement bases.

Mint-flavored Robert B. Stevenson, Columbus, Ohio cotton rolls D.D.S., M.S., M.A. Pressure-indicator paste is often used by dentists while making ad...
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