45 research outputs found
Planificación estratégica en la calidad educativa en un instituto de educación superior tecnológico público de Lima Metropolitana, 2023
El objetivo del presente estudio fue determinar la influencia de la planificación
estratégica en la calidad educativa en un instituto de educación superior tecnológico
público de Lima Metropolitana, 2023. La misma que se encuentra asociada al
Objetivo de Desarrollo Sostenible (ODS) “Educación de calidad”. El estudio fue de
tipo básica con un enfoque cuantitativo y de diseño no experimental de corte
transversal, de alcance descriptivo y correlacional causal. La muestra estuvo
constituida por 74 docentes, la técnica empleada fue la encuesta y se utilizó como
instrumento 1 cuestionario validado para cada variable. Para el análisis inferencial
se empleó la prueba de regresión logística ordinal, considerando un nivel de
significancia < 0,05. Los resultados muestran que el valor de Wald fue 17,812, el pvalor
< 0,001, esto demuestra que existe una influencia significativa de la
planificación estratégica en la calidad educativa, asimismo se observó que valor de
Pseudo R cuadrado mediante Nagelkerke fue 0,418. Por lo tanto, se concluye que la
planificación estratégica influye significativamente en la calidad educativa en un
instituto de educación superior tecnológico público de Lima Metropolitana, 2023,
mostrando una influencia de un 41,8%
Patents granted to Peruvian universities in the biomedical field: 2010 to 2020
Introduction: A patent is an industrial property title granted by the State to the inventor of a new product or technology, susceptible of being marketed for profit on an exclusive basis for a determined period of time.
Objective: To determine the number of patents granted to Peruvian universities in the biomedical field from 2010 to 2020, in comparison with the production of other inventors.
Material and Methods: This descriptive, observational, retrospective and cross-sectional study analyzed 73 patents from a universe of 759 patents obtained from the database of the National Institute for the Defense of Competition and Protection of Intellectual Property in Peru, from 2010 to 2020. To compare the number of patents granted to universities with respect to other inventors, Pearson's chi-square test with Yates' continuity correction was applied.
Results: In Peru, during the years 2010 to 2020, 759 patents have been granted, of which 73 belong to the biomedical field (9.61 %), of which universities have generated 24.66 %, i.e. 2.47 % of the total. Furthermore, universities showed significant differences in patent production (p = 0.019) compared to other authors.
Conclusions: In the biomedical field, patent production in Peruvian universities has been very limited from 2010 to 2020. In addition, universities presented significantly lower patent production compared to other inventors, noting that since 2016, they have not been granted any invention patents in the biomedical field
Microleakage in indirect onlay restorations cemented with three different types of adhesives: an in vitro study
To evaluate the in vitro degree of marginal microleakage in indirect Class II onlay restorations cemented with dual self-adhesive, universal adhesive and dual adhesive.In the present in vitro experimental study, a total of 54 human premolar teeth were prepared and divided into three equal groups (n = 18) for placement of onlay-type restorations cemented with A: Allcem™ dual-cure adhesive cement), B: RelyX™U200 dual-cure self-adhesive cement and C: RelyX™ Ultimate universal adhesive cement. All restorations were subjected to 10,000 thermocycles between 5°C and 55°C and immersed in a 1M silver nitrate solution for 6 hours. The crowns were then sectioned mesiodistally and observed under a stereo microscope to determine the degree of marginal microleakage in the cervical area.The onlay restorations cemented with RelyX Ultimate did not present microleakage in the majority of cases (77.8%). Restorations cemented with RelyX U200 showed predominantly microleakage up to the pulp floor in 83.3% of the total, being this significantly higher microleakage than in restorations cemented with RelyX Ultimate and Allcem Dual (p<0.001 and p<0.001 respectively). There was no significant difference in microleakage between the last two mentioned cements (p=0.255) Allcem dual adhesive cement and RelyX Ultimate universal adhesive showed significantly less microleakage than RelyX U200 dual-curing self-adhesive cement at the cervical level, with predominantly no microleakage and microleakage down to the enamel, respectively. The use of RelyX Ultimate cement in indirect restorations is recommended as it showed better marginal adaptation
Effect of Additional Dry Heat Curing on Microflexural Strength in Three Types of Resin Composite: An In Vitro Study
Aim: Additional dry heat curing is a method that favorably influences the mechanical properties of an indirect resin composite restoration. Microflexural strength is a property currently applied for the evaluation of indirect resin composite restorations. The aim of the present study was to assess the effect of additional dry heat curing on microflexural strength in three types of direct-use resin composites. Materials and Methods: This in vitro study consisted of 70 resin composites samples made with a 6 × 2 × 1 mm metal matrix and divided into seven experimental groups, which included Gr1a: Tetric N-Ceram without additional dry heat curing (n = 10); Gr1b: Tetric N-Ceram with additional dry heat curing (n = 10); Gr 2a: Filtek Z350 XT without additional dry heat curing (n = 10); Gr2b: Filtek Z350 XT with additional dry heat curing (n = 10); Gr3a: Filtek Z250 without additional dry heat curing (n = 10); Gr3b: Filtek Z250 with additional dry heat curing (n = 10); and Gr4: SR Nexco Paste (control) without additional dry heat curing (n = 10). The samples were stored in distilled water at 37 °C for 24 h. A universal testing machine with a 2000 N load cell at a speed of 1 mm/min was used to assess flexural strength. The data were analyzed with a parametric ANOVA test with Tukey’s post hoc intergroup factor (for groups without heat treatment) and a nonparametric Kruskall Wallis test with Bonferroni’s post hoc (for groups with heat treatment). In addition, the comparison of independent groups in each resin composite type with and without heat treatment was performed with a Mann Whitney U test. A significance level of p < 0.05 was considered. Results: The Filtek Z250 resin composite with and without additional dry heat curing presented the highest microflexural strength values with 137.27 ± 24.43 MPa and 121.32 ± 9.74 MPa, respectively, while the SR Nexco Paste (control) resin composite presented the lowest microflexural strength values with 86.06 ± 14.34 MPa compared to all the resin composites with additional dry heat curing. The Filtek Z250 and Filtek Z350XT resin composites with and without additional dry heat curing presented significantly higher microflexural strength versus the SR Nexco (p < 0.05) and Tetric N-Ceram (p < 0.05) resin composites. In addition, the Filtek Z350XT and Tetric N-Ceram resin composites with additional dry heat curing showed significantly higher microflexural strength (p < 0.05) compared to those without additional dry heat curing. Conclusions: The Filtek Z250 and Z350XT resin composites had significantly higher microflexural strength values with and without additional dry heat curing. In addition, the Filtek Z350XT and Tetric N-Ceram resin composites subjected to additional dry heat curing showed significantly higher microflexural strength compared to when they did not receive the same procedure, a situation that did not occur with the Filtek Z250 resin composite.Revisión por pare
COVID 19 y Odontología: Medidas preventivas en el desarrollo de la práctica odontológica
COVID-19 in Dentistry is a public health priority for which a series of drastic preventive measures have been applied to help prevent community contagion of the virus, the objective of this study is to describe preventive measures against Covid-19 in the development of dental practice. That is why the importance of the use of all protection barriers such as the use of personal protective equipment (PPE) for dentists, hand washing, screening, triage of patients, cleaning and disinfection of surfaces, preparation of the clinical field, protocol prior to care, provisions for the management of stomatological procedures, use of antiseptic rinses prior to the procedure, placement of a rubber dam, use of high-powered evacuation suctors, disinfection at the end of treatment and dental waste management. It is concluded that it is necessary to use preventive biosafety measures through the correct execution of standards such as hand washing protocol, the use of a disinfectant such as 70% alcohol and the use of a filtering respirator such as N95; in addition to the use of an antiseptic rinse prior to the procedure, the placement of a rubber dam, and the use of a high-powered evacuation suction device.El objetivo del estudio fue describir las medidas de prevención y control de la COVID-19 en el desarrollo de la práctica odontológica. El COVID-19 es una enfermedad causada por el virus SARSCoV- 2 que ha afectado a gran parte de la población mundial por su naturaleza altamente infecciosa. La actividad más vulnerable de contaminación cruzada y difusión de esta enfermedad es la práctica Odontológica, debido al contacto directo con los aerosoles y la exposición directa a la cavidad oral. Por ello es necesario aplicar una serie de medidas preventivas drásticas que ayuden a prevenir el contagio comunitario del virus. Es por ello que todo paciente que acude a la consulta odontológica debe ser tratado como paciente de riesgo y potencialmente sospechoso para COVID-19, por ello antes, durante y después de la atención odontológica se debe aplicar protocolo de atención con el fin de proteger al paciente y al personal odontológico
"In Vitro Color Stability Evaluation of Three Polished and Unpolished Nanohybrid Resin Composites Immersed in a 0.12% Chlorhexidine-Based Mouthwash at Different Times"
"The use of chlorhexidine-based mouthwashes on resin composites with rough surfaces can
cause discoloration which compromises the esthetic of patients. The present study aimed to evaluate
the in vitro color stability of Forma (Ultradent Products, Inc., South Jordan), Tetric N-Ceram (Ivoclar
Vivadent, Schaan, Liechtenstein) and Filtek Z350XT (3M, ESPE, St. Paul, MN, USA) resin composites,
with and without polishing, after being immersed in a 0.12% chlorhexidine (CHX)-based mouthwash
at different times. The present in vitro experimental and longitudinal study used 96 nanohybrid
resin composite blocks (Forma, Tetric N-Ceram and Filtek Z350XT) 8 mm in diameter and 2 mm
thick, evenly distributed. Each resin composite group was divided into two subgroups (n = 16)
with and without polishing and then immersed in a 0.12% CHX-based mouthwash for 7, 14, 21
and 28 days. Color measurements were performed with a calibrated digital spectrophotometer.
Nonparametric tests were used to compare independent (Mann–Whitney U and Kruskal–Wallis) and
related (Friedman) measures. In addition, the Bonferroni post hoc correction was used considering
a significance level of p < 0.05. All polished and unpolished resin composites presented color
variation < 3.3 when immersed for up to 14 days in 0.12% CHX-based mouthwash. The polished
resin composite with the lowest color variation (∆E) values over time was Forma, and the one with
the highest values was Tetric N-Ceram. When comparing the color variation (∆E) over time, it was
observed that the three resin composites, with and without polishing, presented a significant change
(p < 0.001), although these changes in color variation (∆E) were evident from 14 days between each
color acquisition (p < 0.05). The unpolished Forma and Filtek Z350XT resin composites showed
significantly more color variation than the same polished ones at all times when immersed in a 0.12%
CHX-based mouthwash for 30 s daily. In addition, every 14 days, all three resin composites with
and without polishing showed a significant color change, while, every 7 days, color stability was
maintained. All the resin composites showed clinically acceptable color stability when exposed for
up to 14 days to the above-mentioned mouthwash.
La nueva pandemia por SARS-CoV-2: epidemiología y la respuesta del sistema de salud peruano
The World Health Organization declared the new disease (COVID-19) a pandemic on March 12, and as of January 13, 2021, there were more than 86 million confirmed cases of COVID-19 have been recorded worldwide. In the world, at the Latin American level, Peru ranks fifth with 1,082,907 confirmed cases, presenting a fatality rate of 3.63%. In the same way, the Peruvian State, in response to this COVID-19 disease, issued a regulation through the Ministry of Health (MINSA) in order to counteract the contagion and number of deaths. Although Peru was one of the first countries in the region to implement restrictive measures in the first months, it was one of the most affected; together with the guidelines implemented by MINSA institutions, they did not reflect the expected results, observing the availability of 141 beds of Intensive Care Unit (ICU) nationwide as of January 21, 2021 and Peru in fifth place in the number of infections in Latin America with 1,082,907 confirmed cases and 39,274 deaths with a fatality rate of 3.63%.Desde que la Organización Mundial de la Salud declaró el 12 de marzo a la nueva enfermedad COVID-19 como pandemia, hasta la fecha 13 de enero de 2021 se han registrado más de 86 millones de casos confirmados de COVID-19 en todo el mundo, a nivel de Latinoamérica, Perú se encuentra en el quinto lugar con 1 082 907 casos confirmados presentando una tasa de letalidad de 3,63%. Así mismo el estado peruano en respuesta a esta enfermedad por COVID-19, emitió normativas a través del Ministerio de Salud (MINSA) con la finalidad de contrarrestar el contagio y cantidad de defunciones. A pesar de haber sido Perú uno de los primeros países en la región en ejecutar medidas restrictivas en los primeros meses del 2020, que junto a las directrices ejecutadas por las instituciones del MINSA, no reflejaron los resultados esperados, observándose al 21 de enero de 2021 la disponibilidad de 141 camas en la Unidad de Cuidados Intensivos (UCI) a nivel nacional, y a Perú en el quinto lugar en cifras de contagios en Latinoamérica con 1 082 907 casos confirmados, y 39 274 fallecidos
COVID-19 y su impacto en la odontología
COVID-19 is a recent disease, this virus has shown in various studies to have an approximate incubation time of five days. The health areas, including the area of dentistry, have been seen in a panorama of high vulnerability and exposure, this has allowed modifying the role of the dental surgeon during this pandemic, adopting new biosafety guidelines to keep the health of healthcare personnel and patients. Thus, the protocols for the use of PPE, oral cavity antisepsis and disinfection have become pillars of emergency and emergency treatment care. The objective of this literature review is to highlight the information collected during the health crisis and the updating of protocols adopted by dental surgeons and healthcare personnel to provide adequate care during the pandemic.El COVID-19 es una nueva enfermedad, este virus ha demostrado en diversos estudios tener un tiempo de incubación aproximado de cinco días. Las áreas sanitarias, incluyendo el área odontológica, se han visto en un panorama de alta vulnerabilidad y exposición, ello ha permitido modificar el rol del cirujano dentista durante esta pandemia, adoptando nuevos lineamientos de bioseguridad para preservar la salud del personal asistencial y pacientes. Es así que los protocolos en el uso de EPP, antisepsia de la cavidad bucal y desinfección se han convertido en pilares de la atención de tratamientos de urgencia y emergencia. El objetivo de la presente revisión de literatura es evidenciar la información recolectada durante la crisis sanitaria y la actualización de protocolos adoptados por los cirujanos dentistas y personal asistencial para dar una atención adecuada durante la pandemia
La salud bucal en América Latina: Una revisión desde las políticas públicas
Introduction: In many countries, oral health is not a priority health issue, which constitutes a fundamental challenge for health systems, which must guarantee universal and equitable access to basic oral health services for all and without economic difficulties. Aim: The purpose of the article was to carry out an analysis of public policies in oral health adopted in Latin America. Methodology: The methodology responds to a narrative review, resorting to various bibliographic sources, through databases such as Pubmed, Scopus, Web of Science, SciELO and Redalyc. Results: The results indicate that most oral health policies in Latin America are focused on clinical, individualized, curative and restorative care, where health promotion and community participation continue to be the fundamental strategies to overcome deep inequalities. in health facing Latin Americans. Conclusions: It is concluded that it is essential to carry out oral health epidemiological studies in Latin America since they are part of essential tools for decision making, development, implementation and execution of policies, plans and strategies based on scientific evidence, as well as the approach multisectoral analysis of the social determinants of health.Introducción: En muchos países la salud bucodental no es un tema prioritario en salud, lo cual constituye un desafío fundamental para los sistemas de salud, los cuales deben garantizar el acceso universal y equitativo a los servicios básicos de salud bucal para todos y sin dificultades económicas. Objetivo. El propósito del artículo fue realizar un análisis de las políticas públicas en la salud bucal adoptadas en América Latina. Metodología: La metodología responde a una revisión narrativa, recurriéndose a diversas fuentes bibliográficas, a través de bases de datos como Pubmed, Scopus, Web of Sciencie, SciELO y Redalyc.Resultados: Los resultados indican que la mayor parte de las políticas en salud bucal en América Latina están centradas en la atención clínica, individualizada, curativa y restaurativa, en donde la promoción de la salud y la participación comunitaria continúan siendo las estrategias fundamentales para superar las profundas desigualdades en salud que enfrenta los latinoamericanos. Conclusiones: Se concluye que es fundamental realizar estudios epidemiológicos en salud bucal en América Latina ya que forman parte de herramientas esenciales para la toma de decisiones, el desarrollo, la implementación y la ejecución de políticas, planes y estrategias basadas en la evidencia científica, así como el abordaje multisectorial de los determinantes sociales de la salud
Oral health in Latin America: A view from public policies
Introduction: In many countries, oral health is not a priority health issue, which constitutes a fundamental challenge for health systems, which must guarantee universal and equitable access to basic oral health services for all and without economic difficulties.
Aim: The purpose of the article was to carry out an analysis of public policies in oral health adopted in Latin America.
Methodology: The methodology responds to a narrative review, resorting to various bibliographic sources, through databases such as Pubmed, Scopus, Web of Science, SciELO and Redalyc.
Results: The results indicate that most oral health policies in Latin America are focused on clinical, individualized, curative and restorative care, where health promotion and community participation continue to be the fundamental strategies to overcome deep inequalities. in health facing Latin Americans.
Conclusions: It is concluded that it is essential to carry out oral health epidemiological studies in Latin America since they are part of essential tools for decision making, development, implementation and execution of policies, plans and strategies based on scientific evidence, as well as the approach multisectoral analysis of the social determinants of health.</jats:p
