Bratu D, Nussbaum R. Bazele clinice si tehnice ale protezarii fixe,. Timisoara: Signata, 6. Maalhagh-Fard A, Wagner WC. Repair of fractured framework: . Bratu D, Nussbaum R. Bazele clinice și tehnice ale protezării fixe. Bucharest: Editura Rândașu I, Stanciu L. Restaurări protetice dentare fixe. Bazele clinice si tehnice ale protezarii fixe. D. Bratu, R. Nussbaum; Editura Signata, Timisoara,; 2 Excerpts. Evaluation of Metal-Ceramics Interface for .
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Thank you for your participation! On the working model, we will make the template of the future prosthetic part. The working model with mobile and detachable parts can be classified as follows: The ACCU-TRAC system is an efficient one fast and cheap and precise in the accomplishment of models with dental dies which eliminate the pines, being indicated in fixed and composed prosthetics.
Metal – on the galvanic base; – easy fusionable alloys; – melted and pulverized alloys; – amalgam. Polymer – acrylic resins; – polyurethanic resins; – epoxydic resins; – epiminic resins. The model has a base which The traditional physical and analogous working permits its assembly into a simulating intermaxillar model is obtained through different technologies in the instrument. Classification of the working model with mobile detachable dental dies: Systems which permits the obtainment of mobile dental dies without swivel: Sectioned model without pins: The side arms are made of plastic material, allowing the entire fixing of the mobile dental dies and model.
The model transportation is made with a special case which protects the model. The basic plate has a heptagonal shape and is made of plastic masses of white colour.
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It has 2 faces: An inferior face is provided with ribs which serve at the removal of the model from the main device. The conformer is made of Plexiglas.
It has a canal with embattled border and a rib with numbers from 1 to 59which permit the reattachment of the sectioned segments from the working model the mobile dental protezadii The space retainer is made out of semi-rigid and the other components of the prosthetic field into the green material, which is adapted to the main device base support of a unique position. On the both sides of the during the assembly into the articulator.
The arms are applied on the support and are closed; the basic plate is fixed and the functioning of the system is verified.
Bazele clinice si tehnice ale protezarii fixe
The centring of the impression over the main device, applied over the base plate. The impression is washed, dried, the borders in excess will be reduced; we mark on the posterior side of the impression, the middle of the crests in the posterior region and the median line in the frontal zone.
Removal of the impression Picture no. Removal of the white basic plate and the opening of the side arms.
The paste of class IV Gypsum is prepared, for the socket and also for the model. The Gypsum in excess will be fiixe before it becomes harder. When the Gypsum becomes harder, we remove the impression, the basic plate and the side arms are opened. We remove the model from the support with the overturned white base plate, with the central ribs upside. With a blade or a special device type MODEL-CUT for sectioning, we remove the excesses of Gypsum, we divide the mobile dental dies which are parallel to the milled edges.
The component parts are washed, dried and reassembled in the support in numerical alw.
The model is secured by closing the arms. The model from the support.
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Sectioning of the mobile dental dies. The space maintainer of green colour is applied on the basic side of the protezarrii. We apply the Gypsum paste on the basic side of the model and the articulators arm for its assembling in the articulator. The ACCU-TRAC eliminates the pins which need a more laborious technology for the obtainment of models with mobile dental dies, being indicated in the fixed and composed prosthetics.
Bratu D, Nussbaum R. Positional accuracy of four die tray systems J Prosth Dent ; Science of Dental Materials, ed.
Assembling the models in the articulator.