ABSTRACT
Objective@#To evaluate the clinical efficacy of invisible orthodontic appliances without brackets for the distal movement of maxillary molars to improve the ability of orthodontists to predict treatment outcomes.@*Methods@#Web of Science, Cochrane Library, Embase, PubMed, Wanfang Database, CNKI Database, and VIP Database were searched for studies investigating the efficacy of invisible orthodontic appliances for distal movement of maxillary molars in adult patients and published from database inception to August 1, 2023. A total of three researchers screened the studies and evaluated their quality and conducted a meta-analysis of those that met quality standards.@*Results@#This study included 13 pre- and postcontrol trials with a total sample size of 281 patients. The meta-analysis revealed no significant differences in the sagittal or vertical parameters of the jawbone after treatment when compared with those before treatment (P>0.05). The displacement of the first molar was MD=-2.34, 95% CI (-2.83, -1.85); the displacement was MD=-0.95, 95% CI (-1.34, -0.56); and the inclination was MD=-2.51, 95% CI (-3.56, -1.46). There was a statistically significant difference in the change in sagittal, vertical, and axial tilt of the first molar before and after treatment. After treatment, the average adduction distance of the incisors was MD=-0.82, 95% CI (-1.54, -0.09), and the decrease in lip inclination was MD=-1.61, 95% CI (-2.86, -0.36); these values were significantly different from those before treatment (P<0.05).@*Conclusion@#Invisible orthodontic appliances can effectively move the upper molars in a distal direction and control the vertical position of the molars. When the molars move further away, there is some degree of compression and distal tilt movement, which is beneficial for patients with high angles. The sagittal movement of incisors is beneficial for improving the patient's profile.
ABSTRACT
Introducción: las Revisiones Sistemáticas (RS) son herramientas para practicar Medicina Basada en la Evidencia. La Colaboración Cochrane genera RS, pero el conocimiento y uso de la Biblioteca Cochrane (BC) es heterogéneo. Nuestro objetivo fue describir el nivel de conocimiento y el perfil de uso de la BC entre asistentes a una Conferencia Mundial de Medicina Interna (WCIM). Método:estudio transversal vía encuesta electrónica entre asistentes al XXXI WCIM, recabando información demográfica de los participantes; su conocimiento, acceso y usos de la BC. Resultados: 413 asistentes aceptaron participar y 198 (47,9 por ciento) de 24 países respondieron. 91,4 por ciento eran Latinoamericanos, 50,5 por ciento eran internistas. El conocimiento de la BC fue del 96,5 por ciento. El 76% de quienes respondieron usaban la BC al menos una vez al mes. No encontramos diferencias en la frecuencia de uso según edad o ámbito académico. Las principales razones para utilizar RS-BC fueron: toma de decisiones clínicas (67,6 por ciento), actualización (64,2 por ciento) y docencia (31,8 por ciento); 46 por ciento consideraron la BC muy útil para sus propósitos. Los <35 años utilizaban significativamente más la BC para guiar las decisiones clínicas que los >35 años (70 por ciento vs 53 por ciento, p: 0,017). Quienes consideraron muy útil la BC la utilizaron significativamente más para propósitos docentes (41 por ciento vs. 24 por ciento, p: 0,019) y toma de decisiones clínicas (79 por ciento vs. 58 por ciento, p: 0,003) que quienes la declararon como a veces útil o no útil. Hubo también diferencias estadísticamente significativas en la distribución del acceso a la BC según región geográfica (p: 0,001). Conclusiones: encontramos un alto nivel de conocimiento de la BC entre los asistentes a WCIM. Los usuarios describen un uso frecuente para diversos propósitos, considerándola útil para estos. (AU)
Introduction: Systematic Reviews (SR) are tools for practicing Evidence Based Medicine. Cochrane Collaboration generates SRs, but awareness and uses of Cochrane SR, changes over time and across different countries and medical specialties. We aimed to describe awareness and user's profile of Cochrane Library (CL) SR among attendants to a World Conference of Internal Medicine (WCIM). Methods: Cross sectional online survey study among attendants to the XXXI WCIM asking about demographic information, awareness of, access to and uses of CL-SRs. Results: 413 attendants to WCIM volunteered to participate and 198 (47.9 percent) from 24 countries replied; 91.4 percent) were from Latin-America. Mean age was 37 years and 50.5 percent) were general internists or internal medicine subspecialists. Awareness of the CL was 96.5 percent). The frequency of CL-SR use was at least once a month for 76 percent) of responders. We found no difference in frequency of use according to age or academic setting. Main reasons to use CL-SR were: guide clinical decisions (67.6 percent)), personal update (64.2 percent) and teaching (31.8 percent)); 46 percent) considered CL-SR very useful to their purposes. People <35y used CL-SR significantly more for guiding clinical decisions than those >35y (70 percent) vs 53 percent), p: 0.017). Users who considered CL-SR very useful use it significantly more for teaching purposes (41 percent) vs 24 percent), p: 0.019) and for clinical decision-making (79 percent) vs 58 percent), p: 0.003) than those declaring CL-SR as sometimes useful or not useful. Also there was statistically significant difference in distribution of access to CL by geographic region (p: 0.001). Conclusions: We found high awareness of CL-SRs among attendants to WCIM. Users describe frequent use, for several purposes and find it helpful for their purposes; however, access varied across regions. (AU)
Subject(s)
Humans , Male , Female , Adult , Knowledge , Libraries , Internal Medicine , Latin AmericaABSTRACT
Recently, there have been rapid changes in the use of information. In the pursuit or use of medical information, the behavior of medical researchers is changing to electronic resources from existing print resources. Accordingly, this study was conducted to determine the characteristics and range comprehensively by dividing main medical database useful to the research paper writing into three types like abstract database, citation index database and evidence-based medicine (EBM) database among a lot of electronic resources that is on the rise day by day. It is expected that the findings of this study will be useful in the utilization of medical databases by establishing a systematic search strategy and choosing the medical database suitable to the subject of interest to save time and effort, and to obtain necessary information in a timely fashion for researchers.
Subject(s)
Electronics , Electrons , Evidence-Based Medicine , WritingABSTRACT
Recently, there have been rapid changes in the use of information. In the pursuit or use of medical information, the behavior of medical researchers is changing to electronic resources from existing print resources. Accordingly, this study was conducted to determine the characteristics and range comprehensively by dividing main medical database useful to the research paper writing into three types like abstract database, citation index database and evidence-based medicine (EBM) database among a lot of electronic resources that is on the rise day by day. It is expected that the findings of this study will be useful in the utilization of medical databases by establishing a systematic search strategy and choosing the medical database suitable to the subject of interest to save time and effort, and to obtain necessary information in a timely fashion for researchers.
Subject(s)
Electronics , Electrons , Evidence-Based Medicine , WritingABSTRACT
Las quinolonas son antimicrobianos de amplio espectro, cuya administración se ha asociado con efectos colaterales adversos articulares en animales jóvenes; por ello se recomienda cautela en el uso de quinolonas en pediatría restringiendo su uso para situaciones específicas, donde no exista otra alternativa. El presente trabajo evalúa la seguridad de la administración de quinolonas para tratamiento de infecciones en la edad pediátrica a través de un metaanálisis de estudios controlados y aleatorizados durante el periodo de 1995-2005. Dado que la técnica de metaanálisis requiere acceso a fuentes primarias y verificables, así como a trabajos originales "in extenso", se utilizaron como estrategia de búsqueda bases de datos electrónicas de referencias bibliográficas, el Index Medicus y Excerpta médica, MEDLINE y EMBASE respectivamente; a través de lenguaje controlado, búsqueda controlada, utilizando el Thesaurus, indexador electrónico, como diccionario de la base de datos, Biblioteca Cochrane, búsqueda libre, más búsqueda controlada utilizando limitadores. Se incluyeron todos los ensayos clínicos aleatorizados y controlados (ECAs), que comparan el tratamiento con quinolonas frente a un control en pacientes pediátricos, con respecto a la aparición de efectos adversos articulares. Se incluyeron 7 estudios controlados aleatorizados, que en el grupo de intervención utilizaron quinolonas en niños y adolescentes y en el grupo control un antibiótico de otra familia. El metaanálisis demostró que el riesgo de inducir efectos adversos articulares es similar en los dos grupos y muestra que no existe incremento significativo del riesgo (RR) de afectación articular con el uso de quinolonas a dosis establecidas, a la luz de los conocimientos actuates.
The quinolonas are antimicrobials of wide spectrum, its administration has been associated with adverse articular effects in young animals. Caution is recommended in the quinolonas use in pediatrics, restricting its use for situations where another alternative doesn't exist. To evaluate the security of the quinolonas administration for treatment of infections in the pediatric age, we present an metaanalysis of randomized and controlled trials (RCT), during the period of 1995-2005. Electronic databases of bibliographical references as The Index Medicus and Excerpta, MEDLINE and EMBASE respectively, through controlled language, controlled search, using the Thesaurus, electronic indicator, as dictionary of the database, Cochrane Library, search free, more controlled search using the constrainers, had been used. All the randomized controlled trial were included, they compare the treatment with quinolonas in front of a control in pediatric patient. Seven RCT were included that used quinolonas in children and adolescents in the intervention group and in a control group an antibiotic of another family, about the adverse articular effects. The metaanalysis demonstrated that the risk of inducing effects adverse in articulations is similar in the two groups. In the carried out metaanalysis it is verified that there is not significant increment of the risk (RR) of affectation to articulate with the quinolonas use to established dose.