ArticleScientific reports2026
Effect of different washing and post-curing protocols on the fracture resistance of 3D-printed pediatric crowns after thermal cycling.
Article in Scientific reports, 2026. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 1 paper.
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Who cites it
1 citing paper in PubMed.
- Marginal adaptation of 3D-printed crowns: influence of preparation geometry and digitization workflow.BMC oral health · 2026Article
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5 authors.
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Abstract
Three-dimensional (3D) printing is increasingly used for pediatric crown restorations; however, post-processing procedures may critically influence their mechanical performance. This in vitro study evaluated the effects of washing and post-curing durations on the fracture resistance and fracture pattern distribution of 3D-printed pediatric crowns after thermal cycling. Ninety crowns fabricated using a digital light processing (DLP) printer were assigned to nine groups according to washing (0, 3, and 10 min of ultrasonic cleaning) and post-curing (0, 10, and 20 min) durations. After cementation onto standardized dies and 10,000 thermal cycles, fracture resistance was tested and fracture patterns were classified. Two-way analysis of variance revealed significant effects of washing and post-curing (p < 0.001), with post-curing demonstrating the strongest individual influence and a significant interaction between factors. The highest fracture resistance was observed with 10 min of ultrasonic washing followed by 10 min of post-curing, whereas prolonged post-curing reduced strength. Fracture patterns also differed significantly among groups. These findings indicate that mechanical performance depends on the coordinated interaction of post-processing steps. For the tested resin system, 10 min of ultrasonic washing followed by 10 min of post-curing appears to represent a clinically applicable protocol to maximize fracture resistance.
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