Trial reportBMC medical education2025
Exploring pedagogical approaches in crown preparation: a randomized controlled trial comparing the efficacy of instructional videos and live demonstrations.
Trial report in BMC medical education, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. It is linked to trial NCT06426095 (Exploring Pedagogical Approaches), which is not on this map. Cited by 1 paper.
What it found
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Exploring Pedagogical Approaches: A Comparative Analysis of the Efficacy of Instructional Videos and Live Demonstrations in Crown Preparation Training for Preclinical Dental Students
Who cites it
1 citing paper in PubMed.
Corrections and comments
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Authors and funding
11 authors.
Funding
Abstract
backgroundThis study aimed to compare the efficacy of instructional videos and live demonstrations in crown preparation training for preclinical dental students.
methodsA randomized controlled trial was conducted over 12 months with 96 final-year Bachelor of Dental Surgery (BDS) students. Participants were randomly allocated into three groups: Group A (instructional video), Group B (live demonstrations), and Group C (hybrid approach). Each group underwent training in porcelain-fused-to-metal tooth preparation through their respective methods. Performance was assessed using a standardized scoring chart, while satisfaction and perceptions were evaluated using a 5-point Likert scale. Data were analyzed using Chi-square and paired t-tests, with statistical significance set at p < 0.05.
resultsThe group comparisons revealed significant differences in perceptions between Group A and Group B regarding stress levels during crown preparation (p = 0.013) and the adequacy of preclinical training (p = 0.034), with Group B showing higher satisfaction. However, no significant differences were found between Groups A and C or between Groups B and C (p > 0.05). Exercise scores across all groups showed no significant variation (p > 0.05), indicating comparable performance. Knowledge assessment revealed that while a majority of students correctly identified key concepts such as finish line depth, bur choices, and cusp reduction, 10-16% of students held misconceptions in areas like margin design and reduction ranges.
conclusionThis study demonstrates that instructional videos, live demonstrations, and a hybrid approach are all effective methods for teaching crown preparation skills to preclinical dental students. The slight advantage of the hybrid approach suggests that combining different teaching methods may provide the most comprehensive learning experience. Future studies should explore the long-term impact of these methods on clinical performance.
trial registrationThe study was registered at clinicaltrials.gov, identifier NCT06426095.
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