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Biomedical subjects

G R Troendle

Publications and source records attributed to G R Troendle.

12 recordsLinked to original sources
PubMed1992

Equipping a dental laboratory: making a shell blaster.

A shell blaster has many uses in a dental laboratory. However, because of the size and expense of this piece of equipment, it is not often found in many office laboratories. This article describes a method for making a relatively small, fully functional shell blaster for less than one hundred dollars. The shell blaster can be changed into a sandblaster by removing the walnut shells and refilling it with 26-grit aluminous oxide.

Acrylic Resins↗
PubMed1992

Making an instrument for smoothing the detailed occlusal anatomy of a wax pattern.

A smooth wax pattern is imperative to reduce the polishing time of the subsequent casting. The detailed occlusal anatomy is often the most difficult portion of the wax pattern to smooth. This article describes a procedure for making a device that can be used to smooth the detailed anatomy of a wax pattern. It also describes how to use the device.

Dental Impression Technique↗
PubMed1992

An indicator for fitting castings to a die.

This article describes a procedure for making an indicator to be used in fitting a casting to a die. It also describes how to use the indicator in the laboratory. The materials for making the indicator are inexpensive, present no health hazard, and are readily available at any arts and crafts store.

Dental Casting Technique↗
PubMed1992

Making a coping for an esthetic veneer crown.

Esthetic veneer crowns should be waxed to full contour before the veneer surface is cut back. This procedure ensures that patterns and metal copings will have the proper contours. A technique is described for making a coping that has an ideal thickness of 0.3 to 0.5 mm, that is stable, and that is unlikely to fracture.

Crowns↗
PubMed1992

Equipping a dental laboratory: fabricating a pressure pot.

A pressure pot has many applications in dentistry. This article describes a simple method of converting an everyday kitchen pressure cooker into one that can be used in dentistry. The technique is simple, and the components needed are readily available at a local hardware or department store. The advantage of this pressure pot is that it can be made for one third to one half the cost of purchasing one from a manufacturer.

Dental Equipment↗
PubMed1991

Equipping a dental laboratory: making a plaster trap.

A plaster trap is a necessity for any dental laboratory. This article describes a technique for making an inexpensive plaster trap from a 3 1/2 gallon bucket and two trap adaptors. The materials are readily available and the armamentarium necessary to assemble the plaster trap is minimal. Making a plaster trap has two advantages. First, it can be made for a fraction of the cost of those purchased commercially and second, the plaster trap is easily cleaned by replacing the bucket without remaking the lid portion.

Calcium Sulfate↗
PubMed1991

Equipping a dental laboratory: making a dust and particle container.

A particle container has many uses in the dental laboratory and operatory. This article describes a method of making such a container from a 3 1/2 gallon bucket with a lid. Such a container can be easily and inexpensively made from materials that are readily available.

Air Pollution↗
PubMed1991

Film thickness of four disclosing media.

The use of disclosing media has been recommended to enhance the fit of castings. This study evaluated the film thickness of four disclosing media: (1) disclosing wax, (2) Net spray, (3) G-C Check Fit material, and (4) Extrude polyvinylsiloxane (low viscosity) impression material. ADA Specification No. 8 for zinc phosphate cement gives a maximum film thickness for the cement that was used as the control for these four media. The results demonstrated that the film thicknesses of all four disclosing media were less than the 25 microns maximum allowed for zinc phosphate cement.

Dental Materials↗
PubMed1983

A simple method of boxing rubber base impressions.

The advantages of boxing an impression are better adaptation of stone around dowel pins, control over the level of the second pour of stone, and minimal cast trimming. This article describes a simplified boxing technique that offers the following additional advantages: Parts of the impression that are inadequate in length can be extended to ensure a die of adequate length (Fig. 6). Boxmat adheres to the rubber base and facilitates application. Contouring the palatal or lingual part of the impression is greatly simplified and provides access for sawing out dies. The material is reusable.

Dental Impression Materials↗