scholarly journals Effectiveness of technology-enhanced teaching and assessment methods of undergraduate preclinical dental skills: a systematic review of randomized controlled clinical trials

2020 ◽  
Vol 20 (1) ◽  
Author(s):  
Khaled Khalaf ◽  
Mohamed El-Kishawi ◽  
Shahd Mustafa ◽  
Sausan Al Kawas
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
Assessment Methods ◽  
Controlled Clinical Trials ◽  
Randomized Controlled Clinical Trials ◽  
Randomized Controlled

scholarly journals Effectiveness of Technology-Enhanced Teaching and Assessment Methods of Undergraduate Preclinical Dental skills: A Systematic Review of Randomized Controlled Clinical Trials

2020 ◽  
Author(s):  
Khaled Khalaf ◽  
Mohamed El-Kishawi ◽  
Shahd Mustafa ◽  
Sausan Al Kawas
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
High Risk ◽  
Dental Students ◽  
Risk Of Bias ◽  
Assessment Methods ◽  
Inclusion Criteria ◽  
Controlled Clinical Trials ◽  
Randomized Controlled Clinical Trials ◽  
Randomized Controlled

Abstract Background: To investigate the effectiveness of technology-enhanced teaching and assessment methods of undergraduate preclinical skills in comparison to conventional methods. Methods: A comprehensive search strategy was implemented using both manual and electronic search methods, including PubMed, Wiley, ScienceDirect, SCOPUS, and the Cochrane Central Register of Controlled Trials. The search and selection of articles that met the inclusion criteria were carried out in duplicates. A Cochrane data extraction form for RCTs was used to extract the relevant information from all included articles. Risk of bias of all included articles was assessed independently by two authors using the Cochrane risk of bias tool. Results: A total of 19 randomized controlled clinical trials met the inclusion criteria and were included in this review. The majority of the studies included in this review have a high risk of bias mainly due to incomplete data, lack of blinding of the examiners, and due to other biases, such as small sample sizes, not accounting for additional hours of training, and the lack of calibration of examiners grading the preparations. Conflicting results were reported in the included studies with regards to whether there were differences between the intervention and control groups in the outcome measure of quality of students’ performance. A meta-analysis could not be done for this study due to the heterogeneity among the included studies.Conclusions: Technology-enhanced teaching and assessment tools used in preclinical skills training of undergraduate dental students have the potential to improve students’ performance. However, due to the conflicting outcomes reported in the 19 studies included in this systematic review and their high risk of bias, better quality studies are required to find a definitive answer to the research question of this systematic review.

scholarly journals Effectiveness of technology-enhanced teaching and assessment methods of undergraduate preclinical dental skills: a systematic review of randomized controlled clinical trials

2020 ◽  
Author(s):  
Khaled Khalaf ◽  
Mohamed El-Kishawi ◽  
Shahd Mustafa ◽  
Sausan Al Kawas
Keyword(s):  
Systematic Review ◽  
Clinical Trials ◽  
High Risk ◽  
Dental Students ◽  
Risk Of Bias ◽  
Assessment Methods ◽  
Inclusion Criteria ◽  
Controlled Clinical Trials ◽  
Randomized Controlled Clinical Trials ◽  
Randomized Controlled

Abstract Background: To investigate the effectiveness of technology-enhanced teaching and assessment methods of undergraduate preclinical skills in comparison to conventional methods. Methods: A comprehensive search strategy was implemented using both manual and electronic search methods, including PubMed, Wiley, ScienceDirect, SCOPUS, and the Cochrane Central Register of Controlled Trials. The search and selection of articles that met the inclusion criteria were carried out in duplicates. A Cochrane data extraction form for RCTs was used to extract the relevant information from all included articles. Risk of bias of all included articles was assessed independently by two authors using the Cochrane risk of bias tool. Results: A total of 19 randomized controlled clinical trials met the inclusion criteria and were included in this review. The majority of the studies included in this review have a high risk of bias mainly due to incomplete data, lack of blinding of the examiners, and due to other biases, such as small sample sizes, not accounting for additional hours of training, and the lack of calibration of examiners grading the preparations. Conflicting results were reported in the included studies with regards to whether there were differences between the intervention and control groups in the outcome measure of quality of students’ performance. A meta-analysis could not be done for this study due to the heterogeneity among the included studies.Conclusions: Technology-enhanced teaching and assessment tools used in preclinical skills training of undergraduate dental students have the potential to improve students’ performance. However, due to the conflicting outcomes reported in the 19 studies included in this systematic review and their high risk of bias, better quality studies are required to find a definitive answer to the research question of this systematic review.

Effects of cinnamon supplementation on systolic and diastolic blood pressure: a systematic review and meta-analysis of randomized controlled clinical trials

2021 ◽  
Author(s):  
Zeinab Yazdanpanah ◽  
Mandana Amiri ◽  
Azadeh Nadjarzadeh ◽  
Hadis Hooshmandi ◽  
Maryam Azadi-Yazdi
Keyword(s):  
Systematic Review ◽  
Blood Pressure ◽  
Clinical Trials ◽  
Diastolic Blood Pressure ◽  
Weighted Mean Difference ◽  
Meta Analysis ◽  
Cochrane Collaboration ◽  
Controlled Clinical Trials ◽  
Randomized Controlled Clinical Trials ◽  
Randomized Controlled

Introduction: Hypertension is a chronic condition that might lead to renal and cardiovascular diseases. The previous trials examining the effect of cinnamon supplementation on blood pressure have led to conflicting results. The present systematic review aimed to summarize the effect of cinnamon supplementation on blood pressure using a meta-analysis of published randomized controlled clinical trials. Methods: To identify the eligible articles, MEDLINE, SCOPUS, ISI Web of Science, and Google Scholar were searched from inception until September 2019 for relevant articles. The risk of bias assessment was performed using the Cochrane collaboration tool. A Random-effects model was applied to calculate the summary effects. Results: Totally, 11 trials with 686 participants were included in this systematic review and meta-analysis. The dose of cinnamon supplement consumption varied from 500 to 10000 mg/d. The meta-analysis revealed that cinnamon supplementation significantly decreases systolic blood pressure (SBP) [WMD (weighted mean difference)= -5.72 mmHg, 95% confidence interval (CI): -8.63 to -2.80; P<0.001, I2= 81.1)] and diastolic blood pressure (DBP) (WMD= -4.06 mmHg, 95% CI: -6.68 to -1.44; P= 0.002, I2 = 88.6). Subgroup analysis suggested no significant reduction of DBP in subjects with diabetes (WMD= -2.015 mmHg, 95% CI: -4.55 to 0.52; P= 0.12, I2 = 72.3) and prediabetes or metabolic syndrome (WMD= -4.8 mmHg, 95% CI: -10.06 to 0.44; P= 0.073, I2= 92.5). Conclusions: Cinnamon supplementation could be beneficial in lowering SBP and DBP in adults. Further studies with different doses are recommended to confirm the present findings.

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