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Biomedical subjects

K C Trabert

Publications and source records attributed to K C Trabert.

9 recordsLinked to original sources
PubMed1984

The endodontically treated tooth. Restorative concepts and techniques.

There is not one post, core, or final restoration that can be used in all clinical situations. If this were the case, there would not be the need for the numerous books on restoration that have been written over the last 3 decades. This article has not discussed the merits and shortcomings of the numerous restorative concepts and techniques that exist, but rather has concentrated on those that we feel are valid and have application today. Dentistry, like the other health professions, does not have the luxury of being able to limit those variables that occur daily in our clinical practice. We must learn to work with these variables and spend less time trying to find the one that applies to all cases: the ideal restoration that can be produced for the masses. When we understand the basic concepts of how to retain the various restorative components and how to protect remaining tooth structure, our ability to answer the numerous questions that arise during the restorative process will be facilitated and will result in final restorations that are based on sound design principles.

Dental Abutments↗
PubMed1980

The retentive and stress-distributing properties of a threaded endodontic dowel.

When the Radix Anchor apex was allowed to engage the bottom of the prepared channel, very high apical stresses were generated within the supporting structure. When the coronal flanges engaged the occlusal portion of the model, high lateral stresses occurred in the coronal portion of the channel. These stress concentrations can be avoided by installing the dowel so that only the retentive threads engage dentin. This may be accomplished by "backing off" one half turn when slight resistance to dowel threading is encountered. The Radix endodontic dowel system was more retentive than cemented dowels and less retentive than another dowel which threads into the dentin of the channel wall. The Radix Anchor was more retentive when both diameter and length of imbedment were increased simultaneously.

Crowns↗
PubMed1979

Dowel retention with glass-ionomer cement.

The retentive capacity of the Whaledent Parapost system utilizing ASPA cement was compared at two lengths, three diameters, and with respect to the effect of both medication and citric acid pretreatment. The greatest single factor influencing retention was embedment depth into dentin. No significant differences were observed between the retention values for medicated and unmedicated teeth. Finally, no increase in retention was noted over previously reported values for zinc phosphate, carboxylate, and epoxy resin cements. The glass-ionomer cement tested offers no advantage for post retention.

Acid Etching, Dental↗
PubMedDate not supplied

Effects of cement type and thickness on retention of serrated pins.

The retentive capacity of cemented pins was determined. Zinc phosphate, polycarboxylate, and cyanoacrylate were used to cement threaded pins (0.024 inch) into precise channels of 0.025, 0.026, and 0.027 inch. Highest retentive values were realized when zinc phosphate and polycarboxylate cements were used with the smallest pin-channel mismatch. Ethyl cyanoacrylate was least retentive and demonstrated no mismatch dependency.

Cyanoacrylates↗