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Resistencia a la fractura de coronas dentales fabricadas análogamente vs tecnología cad-cam. Estudio In vitro.
- Source :
-
NOVA: Publicación Científica en Ciencias Biomédicas . ene-jun2021, Vol. 19 Issue 36, p1-10. 10p. - Publication Year :
- 2021
-
Abstract
- Background. The fracture resistance of the crowns may have an influence on their appearance, according to the method of making them, either analogously or by means of Cad-Cam technology. Objective. To compare the resistance to the fracture of the individual crowns made by two manufacturing methods, under computer-aided design and computerized manufacturing (CAD-CAM) and injected. Methods. In vitro study. Sample size 20 crowns in two groups: 10 crowns using CAD-CAM technology and 10 crowns injected. Crowns were subjected to compressive loads in a universal testing machine, with a speed of 1mm / min and a cell load of 5kN until obtaining the maximum bill for these. Data were statistically analyzed using the Shapiro Wilk tests, Mann Whitney p = 0.05. Results. Crowns manufactured by Cad-Cam obtained a minimum of 602.5 Newton and a maximum of 1093 Newton, while the crowns manufactured analogously obtained a minimum of 525.2 Newton and a maximum of 1773 Newton in the experiment with the machine Universal test to achieve their fracture. A significant difference was obtained in the invoice resistance test between both manufacturing methods (p <0.001). Conclusion. Pressed Lithium Disilicate crowns obtained higher fracture resistance than crowns under design and manufacturing by computer (CAD-CAM). [ABSTRACT FROM AUTHOR]
Details
- Language :
- Spanish
- ISSN :
- 17942470
- Volume :
- 19
- Issue :
- 36
- Database :
- Academic Search Index
- Journal :
- NOVA: Publicación Científica en Ciencias Biomédicas
- Publication Type :
- Academic Journal
- Accession number :
- 152121965
- Full Text :
- https://doi.org/10.22490/24629448.5296