Microdureza en resinas nanohíbridas sometidas a proceso de aclaramiento dental

ABSTRACT: Dental bleaching processes are increasingly used in clinical practice. It is important to consider that these procedures are conducted on restorations made of nanohybrid resins. Therefore, the chemical bleaching process can generate changes in the structure of the resins. The main objective of this study was to evaluate the microhardness of resins submitted to dental bleaching processes. For this purpose, 24 samples of the two commercial brands of nanohybrid resins most widely accepted in the market were selected. They were distributed in a control group, another group subjected to hydrogen peroxide bleaching process and a set of resin samples subjected to carbamide peroxide. These were elaborated under the ISO 4049 standard 2014. It indicates a diameter of 4 mm and a depth of 6 mm. It is elaborated in 3D molds of elastic material and later subjected to laboratory tests measured by Vickers hardness obtaining the results for further evaluation and interpretation. Statistically significant differences were found between the control samples and those that were subjected to tooth whitening treatment. In the case of the 3M resin (Z250-XT) a decrease in its resistance value was obtained specifically with the treatment with hydrogen peroxide (p=0.007). While the Kerr resin (Neofil) obtained a significant increase in its microhardness value specifically with the treatment with carbamide peroxide (p=0.019).

• Yazar: Fiallos Ramos, Victor Fabián (author)
• Materyal Türü: bachelorThesis
• Dil: spa
• Baskı/Yayın Bilgisi: 2023
• Konular: Microdureza; Resina nanohíbrida; Dureza de Vickers; Aclaramiento
• Online Erişim: http://dspace.unach.edu.ec/handle/51000/10413