Efectos del tiempo de polimerización de la resina nano híbrida Bio Crown impresa en 3D.

The objective of this research was to evaluate the roughness and hardness of the 3D printed Prizma Bio Crown resin with different polymerization times, through an experimental, observational, in-vitro study with a quantitative approach. 100 samples were made with dimensions of 12 mm high by 6 mm wide, divided into 5 polymerization groups: group A- 0 minutes, group B- 5 minutes, group C- 10 minutes, group D-15 minutes, group E - 20 minutes. The samples were subjected to roughness tests on the Surfest SJ-210 machine from the EPN's research and development laboratory in new design technologies. The average roughness of group A was 2.97925 µm, group B 2.3455 µm, C 1.18825 µm, group D 0.898 µm, group E 0.8005 µm. evidencing that there is a significant difference in relation to the post-curing time, where it was shown that group E is the one with the best smooth surface. At the same time, the tests carried out at the UTA transparency and technology center indicate a variation in the short D-ISO 868 hardness consistent with the polymerization time obtained in the roughness with group A values of 92.88, in the group B with 89.6, in group C with 92.22, in group D with 92.6 and in group E with 93.9, proving that group E had favorable results and demonstrating that the relationship between polishing and photopolymerization time does have a very significant influence although there were no notable differences in values. Concluding, that a correct polishing protocol and post-processing (polymerization) of the 3D resins can provide a significant impact on the physical properties of the material, ensuring correct aesthetics, functionality, and durability of the restorations in the oral cavity.

• Autor Principal: Carballo Aguilar, Angie Giovanna (author)
• Outros autores: Coyago Cholango, Jefferson Omar (author)
• Formato: bachelorThesis
• Idioma: spa
• Publicado: 2024
• Subjects: Resistencia compresiva; Rugosidad; Prizma bio Crown; Shore; Cavidad Oral; Estética; Dureza; Fotopolimerización
• Acceso en liña: http://dspace.unach.edu.ec/handle/51000/13046