Secuencia de tratamiento ilustrada clínica, quirúrgica, protésica y de laboratorio de prótesis parciales y unitarias implantosoportadas para alumnos de grado. Preguntas de autoevaluación del proceso

El Proyecto a desarrollar tiene como objetivo, innovar en la metodología para el desarrollo de la formación, evaluación y autoevaluación de competencias clínicas, quirúrgicas y protésicas en prótesis fija, unitaria y parcial implantosoportada

Efecto de lixiviados de plantas de tratamiento de residuos sólidos en la producción de plantones de Cedrela sp.

The study developed in the laboratory and nursery of the Faculty of Agricultural Sciences, where the characteristics and effect of leachates from solid waste treatment plants were evaluated in the production of seedlings of Cedrela sp. The leachate came from the solid waste treatment plants in the districts of Pangoa and Satipo. Three leachates were considered: Satipo compost leachate, Pangoa compost leachate and Satipo solid waste leachate; and two dilutions of 50 and 100%, previously treated under the anaerobic bioreactor system to improve its properties and use as a biofertilizer. The leachate and substrate were evaluated: pH, electrical conductivity, phosphorus, potassium, calcium and magnesium. The treatments were applied to seedlings of Cedrela sp.; The effect of the application on the plant was evaluated, such as height, stem diameter, mortality, number and weight of leaves. The research was descriptive and experimental, application level. The population consisted of 360 plants, 20 plants per experimental unit; obtaining as a result that there were significant differences between the treatments for the variables of mortality, growth, stem diameter and leaf weight, for the number of leaves lower values were found in the solid waste leaching treatment. The leachate applied to the soil influences the pH, salinity, the content of phosphorus, potassium, calcium and magnesium, however diluted, the influence is excepted in the pH and salinity.El estudio desarrollado en el laboratorio y vivero de la Facultad de Ciencias Agrarias, donde se evaluó las características y el efecto de los lixiviados procedentes de las plantas de tratamiento de residuos sólidos en la producción de plántulas de Cedrela sp. Los lixiviados provinieron de las plantas de tratamiento de residuos sólidos de los distritos de Pangoa y Satipo.  Se consideró tres lixiviados: Lixiviado de compost Satipo, lixiviado de compost Pangoa y lixiviado de residuos sólidos Satipo; y dos diluciones de 50 y 100%, previamente tratados bajo el sistema de bioreactor anaerobio para mejorar sus propiedades y uso como biofertilizante. Del lixiviado y sustrato se evaluaron: pH, conductividad eléctrica, fósforo, potasio, calcio y magnesio. Los tratamientos fueron aplicados en plantones de Cedrela sp.; se evaluó el efecto de la aplicación en la planta como altura, diámetro de tallo, mortandad, número y peso de hojas. La investigación fue de tipo descriptivo y experimental, nivel aplicativo. La población fue constituida por 360 plantas, 20 plantas por unidad experimental; obteniéndose como resultado que hubo diferencias significativas entre los tratamientos para las variables de mortandad, crecimiento, diámetro de tallo y peso de hojas, para el número de hojas se encontraron valores inferiores en el tratamiento de lixiviado de residuos sólidos. El lixiviado aplicado al suelo, influye en el pH, la salinidad, el contenido de fósforo, potasio, calcio y magnesio, sin embargo, diluido, la influencia se exceptúa en el pH y la salinidad

Comportamiento prosocial preescolar en países de la Comunidad Andina

Scientific interest lies in studying the prosocial characteristics of the child population of the Andean Community (Latin America), as it is a humanistic requirement in currently convulsed societies. In this sense, the research compares the prosocial behavior of 579 infants from Peru, Ecuador and Bolivia. We use rubrics and observation cards. Formal educational institutions host more prosocial children, with boys being better. Individuals from Bolivian and Ecuadorian schools have better prosocial behavior. In terms of management, private institutions in Peru develop a higher level of this behavior. In the Peruvian infants indecipherable empathy was detected, a certain percentage of Bolivians presented a low level of socialization; another percentage of Ecuadorians presented indecipherable cooperation behaviors.El interés científico recae en estudiar las características prosociales de la población infantil de la Comunidad Andina (Latinoamérica), por ser una exigencia humanística en las sociedades actualmente convulsionadas. En ese sentido, la investigación compara el comportamiento prosocial de 579 infantes de Perú, Ecuador y Bolivia. Utilizamos rúbricas y fichas de observación. Las instituciones educativas formales albergan a niños más prosociales, siendo mejor el de los varones. Los individuos de las escuelas bolivianas y ecuatorianas tienen mejor comportamiento prosocial. En cuanto a la gestión, las instituciones privadas de Perú desarrollan mayor nivel de este comportamiento. En los infantes peruanos se detectó empatía indescifrable, cierto porcentaje de bolivianos presentó bajo nivel de socialización; otro porcentaje de ecuatorianos presentaron conductas indescifrables de cooperación

Changes in the teaching of prosthodontics adopted in the last academic course of the degree in dentistry in Spain during the first period of the COVID-19 pandemic

Objectives To investigate the impact of the COVID-19 pandemic in the teaching of prosthodontics, on the 5th course of the Bachelor's degree in Dentistry in Spain. Methods In June 2021, a two-section survey was submitted to the coordinators of prosthodontics of the 23 Spanish faculties of Dentistry. The first section was focused on the theoretical lessons, seminars, and clinical discussion sessions. The second part relied on the clinical teaching and the implemented preventive measures. Results The response rate was 100%. By the end of the 2020-21 course, both the theoretical and practical teaching were replaced by online activities, returning to face-to face in 2021-22. While most participants preferred in-person seminars and clinical discussion sessions, concerning the theory, comparable percentages of professors chose either face-to-face or blended learning (BL). The students’ satisfaction with BL is high, but they seem more attentive in-person. At the beginning of the pandemic, the most common emergency in prosthodontics was debonding. Overall, a low concern about cross-infection was noticed. The barrier measures were the mainly adopted for prevention. Conclusions Although the BL is appreciated in prosthodontics for theoretical lessons, face-to-face teaching appears to be the best option for seminars and clinical case discussions. The students are satisfied with BL. Clinical significance In the face of the COVID-19 pandemic, the Spanish faculties of Dentistry responded quickly to continuing offering quality education through an accelerated digitization process that has created a new paradigm. Detailed analyses of these changes may help establish plans to respond systematically to unforeseen emergencies.Depto. de Odontología Conservadora y PrótesisFac. de OdontologíaTRUEpu

Thermo-mechanical behavior of alternative material combinations for full-arch implant-supported hybrid prostheses with short cantilevers

Objectives: To compare the fracture resistance (FR) of three combinations of materials for full-arch maxillary implant-supported hybrid prostheses (HPs) with short cantilevers (≤ 10 mm). Methods: Maxillary HPs were fabricated and classified as follows (n = 5 each): Group-1 (CC-A, control): acrylic resin-veneered Co-Cr frameworks; Group-2 (CF-A): acrylic-resin-veneered carbon-fiber mesostructures; and Group-3 (CF-R): composite-resin-veneered carbon-fiber frames. Specimens were thermal-cycled (5,000 cycles; 5 ◦C–55 ◦C; dwell time: 30 s). Vertical loads were applied until failure, first at the 10-mm-long cantilever (LC), and, afterwards, at the anterior region (AR), using a universal testing machine (crosshead speed: 0.05 mm/s). The fracture pattern was assessed by stereomicroscope and SEM. The one-way ANOVA, the Bonferroni, and the in dependent samples t tests, were run (α= 0.05). Results: At LC, CF-A, and CC-A samples exhibited the highest FR values (p< 0.001), showing no differences to each other. At AR, CC-A specimens recorded the highest FR, followed by CF-A samples (p< 0.001). CF-R HPs displayed the lowest FR at both locations (p< 0.001). The only group with differences between the tested sites was the CC-A, the AR being more resistant (p< 0.001). Most CC-A and CF-A HPs failed cohesively. CF-R pros theses mainly failed adhesively. Conclusions: Maxillary HPs with short cantilevers (≤ 10 mm) made of Co-Cr or carbon-fiber veneered with acrylic resin demonstrated an adequate mechanical resistance (> 900 N). Clinical significance: For maxillary HPs with cantilevers up to 10 mm, acrylic-veneered carbon- fiber meso structures may be recommended, whereas coating carbon-fiber frames with composite resin seems not suitable.Depto. de Odontología Conservadora y PrótesisFac. de OdontologíaTRUEpu

Differences in self-perceived OHRQOL between fully dentate subjects and edentulous patients depending on their prosthesis type, socio-demographic profile, and clinical features

Objectives This observational cross-sectional study aimed to evaluate and compare the oral health-related quality of life (OHRQoL) and clinical performance between dentate subjects and edentulous patients restored with conventional dentures or implant overdentures. Methods 85 edentulous patients were grouped as follows: Group-1 (CD): conventional denture wearers (n = 42), and Group-2 (IO): implant-retained overdenture wearers (n = 43). For the OHRQoL comparisons, a control group of subjects with a healthy natural dentition (Group-3, ND; n = 50) was included. Participants completed three validated questionnaires (OHIP-14sp, OHIP-20sp, and QoLIP-10). Socio-demographic data, prosthesis-related factors, clinical condition of the mouth, and patient subjective evaluations, were gathered. Descriptive and non-parametric probes were run (α = 0.05). Results The ND group was the most unsatisfied (OHIP-14sp; p ≤ 0.001). The OHIP-20sp attributed significantly worse Psychological disability (p = 0.029) and Handicap (p = 0.027) to CD wearers when compared to IO wearers. The CD group showed the significantly highest need for relining (p = 0.041), and the lowest retention (p = 0.011). The OHIP-14sp disclosed a significantly worse OHRQoL for those volunteers who had a job (p = 0.003), a basic education instead of a secondary one (p = 0.022), and no partner (p = 0.006). Conclusions The overall OHRQoL was comparable for both prosthodontic groups, being modulated by socio-demographic and prosthesis-related features. Nonetheless, CD wearers presented prosthetic complications more frequently. Clinical significance: While dentate subjects were the most critical about their oral condition and its repercussion in their life, implant overdenture wearers tended to observe a better OHRQoL and clinical performance compared to conventional denture wearers.Depto. de Odontología Conservadora y PrótesisFac. de OdontologíaTRUEpu