Aim: To assess the student's satisfaction with online teaching and assessment during the Covid-19 pandemic. Methodology: This cross-sectional squestionnaire based study was performed across six Medical and Dental colleges of Lahore. A questionnaire consisting of thirty questions was distributed through google forms. A total of (N = 460) students responded, and the results were presented in percentage frequency. Result: The present study revealed that 46% of the students believed that e-learning tool is not adequatefor basic and clinical sciences.The learning outcomes (35.1%) and objectives (33.8%) were not achieved through e-learning. The majority of the students agreed thatproblem-based learning is an effective way of teaching (37.7%). Online lectures were difficult to understand (35.1%). The students were not satisfied (23.4%) with the online assessment.The technical issues affected the performance of the students. Practical implication: This sudy identified different challenges of online teaching.Online education is a valuable learning tool and the online learning approach has been successfully integrated worldwide with conventional teaching of the curriculum. In order to keep up with the contemporary methods and with the introduction of newer technology and tools it is imperative that our teaching should incorporate e-learning strategies and curricula designed to match it. The policymakers and universities should enable teachers and students with proper training and facilities in this age of technological advancement.. Conclusion: Our study revealed that students were not satisfied withonline teaching however, they were indecisive about online assessment methodology. The students believed that lack of infrastructure and inadequate learning tools affected their performance.. Keywords: E-learning, online assessment, COVID-19, e-learning, problem based learning, learning management system
Objective: To evaluate the knowledge and attitude of dental students towards hepatitis B infection. Study Design: A Cross Sectional Study (survey).
Introduction: Erosion is an escalating problem in all age groups. Dental erosioncan be defined as painless irreversible loss of dental hard tissue due to chemical processwithout the involvement of microorganisms. There are several causes of erosion includingacidic foods and drinks. They are not only harmful to teeth but it is one of the main causes offailure of restoration. Erosion is one of the main challenges to restorative materials. Therefore,the restorative materials used in the mouth should resist or show minimal change in thesesituations. A variety of restorative materials are currently recommended for erosive lesions,including resin modified glass ionomer cement, resin composite and amalgam. Each materialhas its own advantages and disadvantages, which are considered before selecting them asrestorative materials. Objectives: To compare the surface micro-hardness of three restorativematerials when exposed to three acidic beverages and distilled water. Study design: This wasan experimental study. Setting: de’Montmorency College of dentistry in collaboration withPakistan council of scientific and industrial research (PCSIR) Lahore. Period: 6 months, Nov2014- April 2015. Material & Methods: Ninety six disc specimens prepared with resin modifiedglass ionomer, resin composite and amalgam restorative materials. The initial surface microhardnesstest was carried out at 1 day after mixing (before immersion) using micro-hardnesstesting machine. After base line study of micro-hardness the material specimens were subjectedto one of the storage media which was comprised of cola, apple juice, orange juice and distilledwater as control. Quantitative assessment of final surface micro-hardness was done at 2, 5 and7 days after immersion. The values obtained as base line and final vickers hardness number(VHN) for each specimen were subjected to statistical analysis. Results: Exposure to acidicbeverages decreased the surface micro-hardness of all the three restorative materials (P<0.05),while distal water did not affect the surface micro-hardness of any material. The resin modifiedGIC showed greatest reduction in surface micro-hardness as compared to Amalgam and ResinComposite. The cola produced the greatest degradation effect. Conclusion: Selection ofrestorative materials should be considered in patients with tooth surface loss, especially thosewith high risk for erosive conditions. In terms of materials evaluated for this study Amalgam andResin Composite provides the greatest stability under acidic conditions.
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