Web-based formative assessment through clinical cases: role in pathophysiology teaching.

BACKGROUND: Active learning strategies such as formative assessment through clinical cases may help to get a deeper learning. We have studied the effect of this kind of online formative assessment in pathophysiology teaching. METHODS: Seven brief clinical cases were used to give formative assessment in the first semester of a pathophysiology course. To evaluate its effect on learning, we analyzed the proportion of students that passed the end of semester exam with a score above 60 over 100. We also analyzed the effect of the intervention according to the students' previous academic performance. RESULTS: Ninety-six students participated in the study and sat the exam. Sixty-five of them passed it. Students that passed the exam had a higher previous academic performance and had done a higher number of exercises of formative assessment, both in univariate and multivariate analysis. The participants were divided in three groups, according to their previous academic performance. In the intermediate group, the number of cases done by the students who passed the exam was significantly higher than in those who did not pass it (median: 4 versus 0; P = 0.009). CONCLUSION: Formative assessment through web-based clinical cases was followed by an improvement of the academic results in pathophysiology, mainly in students with intermediate performance.

SUPERFÍCIE DE IMPLANTES DE TITÂNIO E SUA CAPACIDADE DE ESTÍMULO NA FORMAÇÃO ÓSSEA: UMA REVISÃO DE LITERATURA / Surface of Titanium Implants and your Ability to Stimulate Bone Formation: A Review of Literature

Durante anos o grande desafio da odontologia tem sido a busca por métodos que reabilitem os pacientes de forma menos traumática e eficaz do ponto de vista funcional e estético. Nessa interface, os implantes dentários surgiram e estão em pleno desenvolvimento tecnológico para garantir a satisfação dos pacientes. Dessa forma, o objetivo deste trabalho foi revisar a literatura sobre as superfícies de implantes de titânio e sua capacidade de estimulo na formação óssea, enfocando evidências científicas acerca das alterações químicas e topográficas no contexto da osseointegração.

For years the big challenge of dentistry has been the search for methods that rehabilitates patients less traumatic, and more effective functionally and aesthetically. In this interface, dental implants have emerged and are being increasingly perfected to ensure the complete satisfaction of rehabilitated patients. Thus, the aim of this study was to develop a theoretical review on the surfaces of titanium implants and their ability to stimulate bone formation focusing on scientific evidence of chemical and topographical changes in the context of osseointegration.