ArticleJournal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.]2026
Two-Dimensional Accuracy of Provisional Laminate Veneers Designed Using Two Digital Smile Design Platforms and Fabricated by Additive and Subtractive Manufacturing.
Article in Journal of esthetic and restorative dentistry : official publication of the American Academy of Esthetic Dentistry ... [et al.], 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.
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4 authors.
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Abstract
objectivesTo evaluate and compare the two-dimensional (2D) accuracy of provisional laminate veneer restorations designed using two digital smile design platforms and fabricated through additive and subtractive manufacturing techniques within a standardized digital workflow. MATERIALS AND
methodsThis study included 25 participants for whom provisional laminate veneer restorations were digitally designed for the maxillary anterior region using two digital smile design platforms. Each digital design was subsequently fabricated using two manufacturing methods, additive manufacturing (stereolithography-based printing) and subtractive manufacturing (milling), resulting in a total of 600 restorations. Standardized clinical photography protocols, including consistent camera positioning, fixed shooting distances, controlled lighting conditions, standardized patient positioning, and intraoral scanning protocols, were applied for data acquisition. Linear measurements were obtained from virtual designs and corresponding fabricated restorations. Measurement reliability was assessed using the intraclass correlation coefficient. Statistical analyses were performed to evaluate dimensional deviations and the effects of the software platform and fabrication method (α = 0.05).
resultsStatistically significant differences were identified between virtual designs and fabricated restorations; however, the magnitude of these deviations remained small. The manufacturing method demonstrated a greater influence on dimensional discrepancies than the digital smile design software platform. No statistically significant differences were observed between the two software platforms when standardized digital workflow conditions were applied. Measurement reliability analysis revealed high intraclass correlation coefficients.
conclusionsThe fabrication method significantly influenced the 2D accuracy of provisional laminate veneer restorations, with additively manufactured restorations demonstrating smaller deviations in linear measurements compared to milled restorations. No significant difference was observed between the digital smile design software platforms.
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