• Caries dental en primeras molares permanentes y segundas molares deciduas, según el sistema internacional de evaluación y detección de caries (ICDAS), en relación a la edad y el género de los niños de una Institución Educativa Nacional del distrito de Ate

      Barragán Salazar, Nathaly Carolina; Marin Leiva, Maria Jose (Universidad Peruana de Ciencias Aplicadas (UPC), 2017-09-11)
      Objective: Determine the first permanent and second deciduous molar dental cavity frequency in relation to kids age and gender, in an Educational National Institution in Ate district, during the 2014-2015 period. Materials and methods: This was retrospective study. The unit of analysis was conformed by epidemiological records from 218 kids, between 8 and 10 years old, both female and male, from a public Educational Institution in Ate district, evaluated between 2014 and 2015. Results: The codes with a highest prevalence both in permanent and deciduous molars were 1, 2 and 3, related to enamel cavities. However, the pieces 85 and 46 presented greater prevalence in codes 4 and 6, in 8 and 10 year olds, which relate to dentin cavities. In regards to the gender, both male and female presented greater prevalence in codes 1, 2 and 3. Conclusions: The inclusion of non-cavitated caries lesions is necessary in the caries registers, since these injuries can be stopped through preventive treatment and diagnostic disease development. Nowadays, it is knowledge important because it prevent the development of the pathology, whose purpose would be to maintain the integrity of the dental structure and therefore promote the optimum state of the oral and integral health.
      Acceso abierto
    • Comparación in vitro de la microfiltración de los cementos de ionómero de vidrio Ketac™ Molar easy mix e Ionofil Molar® en cavidades clase I con dos técnicas de aplicación: jeringa centrix y espátula TRA

      Barragán Salazar, Nathaly Carolina; Basurto Sampedrano, Katherine Elizabeth (Universidad Peruana de Ciencias Aplicadas (UPC), 2016-12-01)
      Introduction: Atraumatic restorative treatment is used as part of preventive public health programs, so it is important to evaluate the application techniques of restorative material. Objective: Compare the microleakage of the Ketac ™ Molar Easy Mix and Ionofil Molar® between two application techniques: Centrix syringe and spatula TRA. Materials and methods: It was an experimental in vitro study. 52 teeth of bovine with cavity preparations (3x2x2 mm) were used. The teeth were divided into 2 groups according to ionomer cements, also were subdivided, according to the technique. The restorative material was placed following the manufacturer's instructions. All teeth were thermocycled. Then, the teeth were immersed in methylene blue 0.5% and sectioned. It was evaluated with an stereomicroscope software. Results: The microfiltration of Ketac ™ Molar Easy Mix and Ionofil Molar® ionomeric cements according to centrix syringe and TRA spatula application techniques showed no statistically significant differences (p value> 0.05). The Ketac TM Molar Easy Mix cement and the technique with the centrix syringe were those that presented less microfiltration. Conclusion: All teeth presented microleakage and among them the group KetacTM Molar Easy Mix® with centrix syringe showed lower values of microleakage.
      Acceso restringido temporalmente
    • Comparación in vitro de la resistencia a la compresión de diferentes marcas de cemento ionómero de vidrio autocurable en la técnica de art

      Barragán Salazar, Nathaly Carolina; Dávila Ramírez, Carolina Melky; Barandiarán Calderón, Bruno (Universidad Peruana de Ciencias Aplicadas (UPC), 2018-11-07)
      Objetivo: Comparar in vitro, la resistencia compresiva de cinco cementos ionómeros de vidrio: KetacTM Molar Easymix (3M ESPE), Gc Fuji IX GP, GC EQUIATM Fil (Gc corporation), Maxxion R (FGM), y KetacTM Universal HM (3M ESPE); tras 24 horas, 7 y 60 días de mezclado. Materiales y métodos: Se seleccionaron tres cementos de ionómero de vidrio de alta viscosidad: KetacTM Molar Easymix (3M ESPE), Gc Fuji IX GP, GC EQUIATM Fil (Gc corporation), y dos cementos de ionómero de vidrio convencionales: Maxxion R (FGM), KetacTM Universal HM (3M ESPE), indicados para el Tratamiento Restaurador Atraumático (TRA). La manipulación fue realizada en estricto cumplimiento con las indicaciones del fabricante. La unidad de análisis fue conformada por cilindros de ionómero de vidrio (2 mm de alto x 4 mm de diámetro), elaborados en una matriz metálica. Se crearon 15 especímenes por cada grupo de estudio, obteniendo un total de 225 especímenes. La prueba de resistencia a la compresión se dio mediante la máquina universal Instron® colocando los especímenes uno por uno verticalmente. La carga compresiva inicial tuvo una velocidad de 1mm/min hasta que la muestra se fracturase, y los resultados se registraron en megapascales (MPa). Resultados: El ionómero encapsulado GC EQUIATM Fil (Gc corporation) mostró mayores valores de resistencia compresiva a las 24 horas (299.80 MPa), mientras que a los 7 y 60 días fue el KetacTM Universal HM (3M ESPE), 77.04 MPa y 75.48 MPa, respectivamente. Por otro lado, existen diferencias significativas en la comparación de cada cemento de ionómero de vidrio en los tres tiempos de evaluación. Así como también, existen diferencias significativas en los tres tiempos evaluados: 24 horas: GC GC EQUIATM Fil (Gc corporation), a los 7 y 60 días KetacTM Universal HM (3M ESPE). Conclusión: El ionómero encapsulado GC EQUIATM Fil (Gc corporation) mostró mayores valores de resistencia compresiva a las 24 horas. Existen diferencias significativas en la comparación de cada cemento de ionómero de vidrio a lo largo de los tres tiempos, asimismo en cada tiempo de evaluación: 24 horas: GC EQUIATM Fil (Gc corporation), a los 7 y 60 días KetacTM Universal HM (3M ESPE). Objective: The aim of the present research was to compare in vitro the compressive strength of five glass ionomer cements: KetacTM Molar Easymix (3M ESPE), Gc Fuji IX GP, GC EQUIATM Fil (Gc corporation), Maxxion R (FGM), and KetacTM Universal HM (3M ESPE); after 24 hours, 7 days and 60 days after the mixing process. Materials and methods: Three high-viscosity glass ionomer cements were selected for the present in vitro study: KetacTM Molar Easymix (3M ESPE), Gc Fuji IX GP, GC EQUIATM Fil (Gc corporation), and also two conventional glass ionomer cements: Maxxion R (FGM), and KetacTM Universal HM (3M ESPE), recommended for the Atraumatic Restorative Treatment (ART). The mixing process was performed strictly respecting the manufacturer recommendations. The analysis unit was made of glass ionomer cylinders of 2mm high and 4mm in diameter, prepared with a metallic matrix. 15 samples were created for each study group, obtaining a total of 225 samples. The compressive strength was evaluated by Instron® universal machine placing the specimens one by one vertically, with a speed of 1mm / min until the sample fractured, and the results were registered in MPa. Results: The encapsulated ionomer GC EQUIATM Fil (Gc corporation) showed higher values of compressive strength at 24 hours (299.80 MPa), while at 7 and 60 days it was KetacTM Universal HM (3M ESPE), 77.04 MPa and 75.48 MPa, respectively. On the other hand, there are significant differences in the comparison of each glass ionomer cement in the three evaluation times. As well as, there are significant differences in the three times evaluated: 24 hours: GC EQUIATM Fil (Gc corporation), at 7 and 60 days KetacTM Universal HM (3M ESPE). Conclusion: The encapsulated ionomer GC EQUIATM Fil (Gc corporation) showed higher values of compressive strength at 24 hours. There are significant differences in the comparison of each glass ionomer cement over the three times, also at each evaluation time: 24 hours: GC EQUIATM Fil (Gc corporation), at 7 and 60 days KetacTM Universal HM (3M ESPE).
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