Investigation on the Effectiveness of Digital Scanning Combined with Reverse Engineering Technology in Demonstrating Full-Crown Tooth Preparation.

This article investigates the effectiveness of combining digital intraoral scanning with reverse engineering technology, specifically using GOM Inspect Pro software, in demonstrating full-crown tooth preparation compared to traditional eye-measurement methods in dental education. In a randomized controlled trial involving 31 preclinical dental students, those receiving digital technology–guided demonstrations showed statistically significant improvements in preparation quality, particularly for the maxillary right first molar’s buccolingual and proximal surfaces and convergence angles, which are more challenging due to limited access and visibility. The study concludes that digital methods enhance students’ understanding of quantitative preparation parameters, improving precision and standardization in prosthodontic training, though it notes limitations such as sample size and focus on maxillary teeth only, suggesting further research for broader validation.