ArticleBMC oral health2025
Effect of aging on the marginal fit of milled and printed zirconia crowns: an in-vitro 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 11 papers.
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Who cites it
11 citing papers in PubMed.
- Three-Dimensional Printed Materials for Definitive Ceramic and Resin Restorations: A Scoping Review.Materials (Basel, Switzerland) · 2026Review
- Marginal adaptation of 3D-printed crowns: influence of preparation geometry and digitization workflow.BMC oral health · 2026Article
- Comparison of two virtual bracket removal workflows for orthodontic retainer fabrication: surface replacement versus surface reconstruction.Clinical oral investigations · 2026Article
- Additive manufacturing for Dentistry: A comprehensive review of techniques and applications.Progress in materials science · 2026Article
- Article
- Fit of Three-Unit Posterior Fixed Dental Prostheses Made from Tetragonal Zirconia Polycrystal by 3D Printing and Milling.Materials (Basel, Switzerland) · 2026Article
- Comparison of marginal gap in implant-supported hybrid nanoceramic crowns fabricated by additive vs. subtractive manufacturing.BMC oral health · 2026Article
- Article
- Verification of extraoral versus intraoral scanning techniques: fit accuracy implications for 3D printed and milled zirconia crowns (An in-vitro study).BMC oral health · 2026Article
- In-vitro comparison of the marginal and internal fit of 3D-printed crown restorations produced using different intraoral scanners and resin types: A Micro-CT analysis.BMC oral health · 2025Article
- Evaluation of fracture resistance and surface characteristics in monolithic zirconia: a comparative analysis of 3D printing and milling techniques.BMC oral health · 2025Article
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Authors and funding
3 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe additive manufacturing is one of the promising methods for fabrication of zirconia based restorations: However, studies on the marginal fit of zirconia restorations fabricated with this technique are sparse. This in vitro study was to measure and compare the marginal fit of milled and printed zirconia based crowns.
methodsTwenty-two human premolars were prepared to receive zirconia crowns. Each tooth preparation was scanned by a laboratory scanner. Digitally designed crowns were divided into two groups (n = 11) according to the method of fabrication either via 3D with a commercial 3Y-TZP slurry or a 5-axis milling machine using a multilayer zirconia blank. The marginal gaps were measured before, after cementation, and after thermomechanical accelerated aging. Kolmogorov-Smirnov and Shapiro-Wilk tests were conducted. Mann-Whitney U test was used to compare between the two techniques. Friedman's test was used to compare between marginal gap distances before, after cementation and after aging. Dunn's test was used for pair-wise comparisons when Friedman's test is significant. The significance level was set at P ≤ 0.05.
resultsMarginal discrepancies between the groups showed significant variations. In comparison to milled, 3D printing demonstrated a statistically significant greater marginal gap distance before, after cementation, and after aging (P < 0.001, Effect size = 2.361), (P = 0.011, Effect size = 1.28), and (P = 0.014, Effect size = 1.234), per respective.
conclusionSignificant differences were found between the two technologies used for fabricating zirconia crowns. The least discrepancies values were found with the milling technique.
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