Original scientific paper

Tension of bridge construction with unparalleled bearers

Adnan Ćatović ; Zavod za fiksnu protetiku Stomatološkog fakulteta, Zagreb

Abstract

In fixed prosthetic therapy bridges are used for a manifold rehabilitation of the masticatory organ, for connecting and substituting the areas without teeth and to transfer the masticatory pressure directly through the bearer tooth to parodont and other supporting structures. In this way almost natural conditions are attained in the oral cavity. In a number of cases it is impossible to obtain total parallelism of bearer teeth excluding orthodontic and endodontic treatments. Nevertheless bridges are successfully set if the parallelism of the bearers deviates even for 30 degrees. The loading of such constructions is unequal and specific as compared to constructions with parallel bearers. In this ipaper the points of the highest load of bridge constructions under the effect of concentric forces and nonparallel bearers are shown on the experimental models made for this purpose. The selection method applied was the photoelastic analysis suitable for the presentation of inner tensions in complex geometric structures. The position and size of the force were determined by means of visible light phenomena.

Keywords

Hrčak ID:

105879

URI

https://hrcak.srce.hr/105879

Publication date:

15.9.1979.

Article data in other languages: croatian german

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