[Study concerning the influence of the casting parameters of dental alloys on the cast prosthetic rehabilitation].
The integration of a cast rehabilitation into the oral environment and its clinical longevity are mainly determined by the accuracy reproduction of the technological parameters. The aim of this study was to evaluate the structural defects induced by the modification of the technological conditions of casting the conventional and titanium alloys.


METHODS
We used 35 cast prosthetic rehabilitation, divided into 7 groups. For each group we modified one parameter: the width of the wax pattern, the design and topography of the casting channels, the absence of the cleanliness of the wax pattern, the preparation of the investment material, the thermal system for the mold preparation and reduced quantity of metal used for casting. For the 7-th group, represented by titanium cast rehabilitation, we modified the design and dimensions of the casting channels.


RESULTS
The changes in the technological conditions induced porosity, incomplete frameworks or plus on the prosthetic appliances. The fundamental theoretical knowledge of the clinician and dental technician and the strictly application of the technologies assure the premises of the satisfaction of the patient.
Viţalariu
Anca Mihaela
AM
Universitatea de Medicină şi Farmacie Gr.T. Popa Iaşi, Facultatea de Medicină Dentară, Catedra Tehnologia Protezelor Dentare.
Tatarciuc
Monica Silvia
MS
D003442:Crowns; D003722:Dental Alloys; D003735:Dental Casting Technique; D017267:Dental Prosthesis Design / Q000379:methods; D006801:Humans; D009057:Stomatognathic Diseases / Q000534:rehabilitation; D014025:Titanium
D003722:Dental Alloys; D014025:Titanium