ArticleBMC oral health2025
Marginal and internal adaptation and absolute marginal discrepancy of 3D-printed, milled, and prefabricated crowns for primary molar teeth: an in vitro comparative study.
Article in BMC oral health, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.
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Who cites it
10 citing papers in PubMed.
- Effect of Different Polishing Systems on the Surface Roughness of 3D-Printed Resins.Materials (Basel, Switzerland) · 2026Article
- Three-Dimensional Evaluation of Marginal Gap in Prefabricated Zirconia and 3D-Printed Pediatric Crowns.Materials (Basel, Switzerland) · 2026Article
- Mechanical performance and color stability of 3D-printed ceramic-filled resin following various bleaching regimens: an in vitro study.BMC oral health · 2026Article
- Influence of conventional and AI-assisted dental CAD software and 3D printing technology on the intaglio surface trueness of interim crowns.The journal of advanced prosthodontics · 2026Article
- Digitally fabricated custom esthetic crowns for primary molars: A systematic review of in vitro and clinical evidence.Journal of clinical and experimental dentistry · 2026Review
- Marginal and internal fit of 3D printed permanent crowns: effect of CAD/CAM software, preparation type and resin material.BMC oral health · 2026Article
- The internal fit and fracture resistance of stainless-steel crowns and porcelain fused to metal crowns in intact and severely damaged permanent molars: an in vitro study.BMC oral health · 2026Article
- Effect of different washing and post-curing protocols on the fracture resistance of 3D-printed pediatric crowns after thermal cycling.Scientific reports · 2026Article
- Marginal and internal adaptation of esthetic crowns for primary molars: an in-vitro study.BMC oral health · 2026Article
- Article
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5 authors.
Funding
Abstract
backgroundThe quality of marginal and internal adaptation plays a crucial role in the clinical longevity of pediatric crowns. This study aimed to evaluate the effect of restoration type (3D-printed, milled, and prefabricated) on the marginal and internal adaptation and absolute marginal discrepancy (AMD) values of crowns for primary molar teeth.
methodsThree restoration groups were created: 3D-printed resin, milled resin-matrix ceramic, and prefabricated zirconia crowns (n = 10 per group). A typodont tooth was prepared according to the guidelines for prefabricated zirconia crowns and scanned to design restorations. 3D-printed and milled crowns were fabricated from the same design. All crowns were cemented on standardized 3D-printed resin dies with self-adhesive resin cement. Marginal and internal adaptation and AMD values were evaluated using micro-computed tomography (micro-CT) at multiple measurement points. Data were analyzed using one-way analysis of variance (ANOVA) and Tukey HSD tests, with statistical significance set at P < 0.05.
resultsThe restoration type significantly influenced the marginal and internal gap and AMD values (P < 0.05). The prefabricated crown group exhibited the highest marginal gap (233.5 ± 33.4 μm) and internal gap (538.6 ± 47.4 μm). The 3D-printed group showed the highest AMD value (299.5 ± 70.2 μm). The milled group demonstrated the lowest gap values, which remained within clinically acceptable limits.
conclusionsPrefabricated zirconia crowns displayed the highest marginal and internal gaps, whereas milled crowns exhibited the most favorable adaptation values within clinically acceptable limits. Given their superior adaptation, CAD-CAM-produced restorations may be a recommendable alternative for pediatric patients.
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