Por favor, use este identificador para citar o enlazar este ítem: http://dspace.udla.edu.ec/handle/33000/8500
Tipo de material : bachelorThesis
Título : Comparación de la adaptación marginal de la estructura metálica en aleación de cromo níquel y cromo cobalto de coronas elaboradas con encerado manual y encerado en cad-cam: estudio in vitro
Autor : Robayo Freire, Byron Fabian
Tutor : Romero Guerrero, María Gabriela
Palabras clave : TRATAMIENTO ODONTOLÓGICO;REHABILITACIÓN ORAL;PRÓTESIS DENTAL;ANÁLISIS COMPARATIVO
Fecha de publicación : 2018
Editorial : Quito: Universidad de las Américas, 2018
Citación : Robayo Freire, B. F. (2018). Comparación de la adaptación marginal de la estructura metálica en aleación de cromo níquel y cromo cobalto de coronas elaboradas con encerado manual y encerado en cad-cam: estudio in vitro (Tesis de pregrado). Universidad de las Américas, Quito.
Resumen : La adaptación marginal es uno de los factores más importantes en la elaboración de una restauración protésica fija...
Descripción : Marginal fit is one of the most important factors in the development of a fixed prosthetic restoration. That is why dentists are looking for new alternatives that achieve an ideal marginal fit and in this way succeed in its restorative treatment. OBJECTIVE: Compare the marginal fit of metal structures of chrome - nickel and chrome - cobalt in Crowns elaborated with manual waxing and CADCAM waxing. MATERIALS AND METHODS: 24 upper and lower premolars Were randomly selected, subsequently each crown was carved with a special protocol leaving a termination type chanfer. Once the sample preparation was carried out printing by addition silicone (polyvinyl siloxane) and was pouring with plaster type IV. The half of the simple (12 samples) entered in a CAD-CAM waxing process. Half of the sample was made with a CAD - CAM waxing system and the other half was fitted with a spacer and insulator with a manual waxing immersion technique. Once the waxed caps were obtained, half of each technique was divided into both alloys: Cr-Co and Cr-Ni respectively. Once melted, the caps were cleaned with aluminum oxide, the caps were contoured and cemented with a cement-based on glass ionomer, using a constant force of 50 N. Once the crowns were cemented, they were introduced into a transparent polymethylmethacrylate capsule, in order to make them a cross section using Iso Met™ 1000 at 950 rpm. Once the cuts were made, the samples were taken to the scanning electron microscope SEM for a marginal fit test. RESULTS: The copes made with CAD - CAM technique and in Cr-Co alloy present a better marginal adaptation compared to the manual waxing technique. The values found when the type of technique is not statistically different. The Cr-Co alloy showed a better marginal adaptation in the two measured techniques. The values found regarding the type of technique are not statistically different. The Cr-Co alloy showed a better marginal adaptation in the two measured techniques. CONCLUSION: Regardless of the type of technique used, the Cr-Co alloy reveals a better marginal fit. However, the two alloys and the two techniques are within clinically acceptable limits.
URI : http://dspace.udla.edu.ec/handle/33000/8500
Aparece en las colecciones: Odontología

Ficheros en este ítem:
Fichero Descripción Tamaño Formato  
UDLA-EC-TOD-2018-69.pdf2,66 MBAdobe PDFVisualizar/Abrir


Este ítem está sujeto a una licencia Creative Commons Licencia Creative Commons Creative Commons