Evaluating Case-Based Learning to Enhance Dental Student Performance in Cavity Preparation: A Pilot Study.

Background The transition from theoretical knowledge to clinical competency in operative dentistry is an ongoing challenge in dental education. Undergraduate students often face a significant gap between understanding theory and applying practical skills for diagnosing and preparing cavities, which leads to decreased confidence, increased stress, and potential errors in clinical practice. Case-based learning (CBL), an active learning strategy that emphasizes real-world scenarios, has shown promise for improving clinical skills and knowledge retention in other healthcare disciplines. This pilot study explored the potential of CBL to address the theory-practice gap and enhance confidence among undergraduate dental students in performing cavity preparations. Methods This pilot study utilized a pre and post-intervention design and involved 30 second-year dental students. Participants completed confidence surveys at three points: before CBL activity, immediately after CBL activity, and following their first clinical cavity preparation procedure. The CBL activity consisted of two components: interactive case discussions and hands-on laboratory exercises designed to simulate real-world dental procedures. The interactive discussions focused on diagnostic and treatment planning while laboratory exercises provided practical experience in cavity preparation. Data were analyzed using repeated-measures analysis of variance (ANOVA) to assess the changes in confidence levels across the three survey points. Results CBL significantly increased students' confidence across multiple dimensions (p < 0.05). Confidence in modifying cavity preparations increased from a mean of 2.91 (SD = 0.292) before CBL to 5.12 (SD = 0.331) post-CBL and further to 5.52 (SD = 0.556) after clinical practice. Similarly, confidence in understanding the basic concepts of caries removal improved from 4.82 (SD = 0.528) pre-CBL to 5.45 (SD = 0.564) post-CBL, and to 5.61 (SD = 0.556) post-clinic. However, confidence in performing cavity preparations without faculty guidance remained relatively low, increasing from a baseline mean of 2.67 (SD = 0.478) to 2.91 (SD = 0.384) post-CBL and 3.64 (SD = 0.603) post-clinic. Conclusion Incorporating CBL into the curriculum can significantly improve undergraduate students' confidence in performing cavity preparation. This approach may help bridge the theory-practice gap and better prepare students for the clinical environment. This pilot study provides promising initial data, and further research is needed to determine the long-term impact of CBL and the optimal implementation strategies.