Comparative evaluation of two commonly accepted tests for adjustment of fixed prosthetic constructions

Regardless of the great advance in prosthetic dentistry related to the development of new more elaborate materials and methods, the dentist must often correct some defects of the newly fabricated prosthetic constructions. In dentistry practice worldwide two tests for adjustment of fixed prosthetic constructions are applied most often - the silicone test and the suspension of Fe2O3 (rouge) and chloroform. The capabilities of the suspension of chloroform and rouge to assess the preliminary contacts between the prosthetic construction and the dental tissues haven't been reviewed in the dentistry literature in Bulgaria. The test is not familiar to the practicing dentists and this is an obstacle for its wide application in everyday practice. The purpose of the current study was to compare the advantages and disadvantages of the silicone test and the modified suspension of halothane and rouge recommended in the recent years. The assessment of the capabilities of the two tests for adjustment is based on the results of their application in the adjustment of crowns and bridges on the working model and on the prosthetic field. The results demonstrate that the two tests have different capabilities in different clinical situations and their concomitant use will allow more precise prosthetic treatment.