Stručni rad
Basic problems of making a facette crown from the point of view of our experiences
Zvonimir Kosovel
; Zavod za fiksnu protetiku Stomatološkog fakulteta, Zagreb
Tomislav Ivaniš
; Zavod za fiksnu protetiku Stomatološkog fakulteta, Zagreb
Sažetak
This work presents the sum total of our actual knowledge concerning the problems of correct fabrication of facette crowns as the most important and the most frequently used aesthetic fixed prosthetic construction element. It is intended for the practicing stomatologist and has been compiled on the basis of our own experiences of several years standing and data from the literature. The basic problems which are discussed and reviewed are associated with the problems of preparing the stumps, retention of the non-metal shell, extension of the non-metal shell and material for the facette. The problem of preparing the stump is discussed with a view to satisfying the technical requirements with regard to the thickness and retention of the non-metal sihell, the minimum of fixation surface of the crown and the form of the stump, to preservation of the pulp from injury and to providing a cervical step. The retention problem of the facette is discussed from the point of view of the basic or primary retention and the supplementary or secondary retention. The problem of extension is discussed with regard to alternatives, whether within the metal case or over the margins of the frame and in what directions. With regard to the non-metal used for the facette the necessity of different preparation of the retention form for the base is considered.
Ključne riječi
Hrčak ID:
108090
URI
Datum izdavanja:
15.9.1972.
Posjeta: 1.653 *