ArticleBMC oral health2024
Influence of various fabrication techniques and porcelain firing on the accuracy of metal-ceramic crowns.
Article in BMC oral health, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers, 1 of them a synthesis that pooled it.
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Who cites it
10 citing papers in PubMed, 1 synthesis or guideline pooled it.
- Marginal Gap of Pre-Cemented Endocrowns: A Systematic Review of Measurement Methods and the Influence of Fabrication Method and Crown Material.Clinical and experimental dental research · 2025Pooled it
- Fracture strength of conventional versus digital interim crowns after thermal cycling.BMC oral health · 2026Article
- Overall fit of anterior and posterior single crown substructures fabricated with different additive manufacturing and conventional techniques.Odontology · 2026Article
- Fit of three-unit anterior fixed dental prosthesis frameworks fabricated by different manufacturing techniques.BMC oral health · 2026Article
- Marginal Misfit Assessment in Common Restorative Materials for Cement-Retained Fixed Implant Prostheses: An In Vitro Comparative Study.Clinical and experimental dental research · 2026Article
- Implant-cemented Co-Cr frameworks produced by hard and soft milling: The impact of porcelain firing cycles on microstructure and fit accuracy.European journal of oral sciences · 2025Article
- Marginal and Internal Adaptation of Implant-Supported Three-Unit Metal Frameworks Fabricated by the Conventional, Semi-Digital, and Fully Digital Techniques Before and After Porcelain Application.Clinical and experimental dental research · 2025Article
- Influence of repeated porcelain firing cycles on the microstructure, marginal and internal fit of implant-cemented Co-Cr frameworks.European journal of oral sciences · 2025Article
- Measuring the Marginal Gap of Pre-Cemented All-Metal Single Crowns: A Systematic Review of In Vitro Studies.Dentistry journal · 2025Review
- Article
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Abstract
backgroundThe fit of a metal-ceramic restoration is essential to its long-term durability. Regarding marginal and internal fit, there is not enough information about the technologies used in the production of metal-ceramic restorations. The aim of this in vitro study is to compare, both before and after porcelain firing, the marginal, axial, axio-occlusal, and occlusal fit of metal-ceramic restorations manufactured using casting, additive or subtractive computer-aided design, and computer-aided manufacturing techniques (CAD/CAM).
methodsCAD/CAM were used to create 50 prepared maxillary first molar-shaped Co-Cr die models, which were randomly divided into 5 groups (n = 10). Cobalt-chrome copings were produced by casting (C), hard metal milling (HM), soft metal milling (SM), selective laser melting (SLM), and selective laser sintering (SLS) techniques. Before and after porcelain firing, discrepancies of the copings were measured using the silicone replica technique. The data obtained by measurements with a stereomicroscope at x80 magnification were analyzed statistically in the SPSS program. The ROBUST three-way analysis of variance (ANOVA) method was used to compare the discrepancy values.
resultsThere were statistically significant differences among fabrication methods (P < .001). The HM method showed the highest discrepancy (90.1 μm), and the C (63 μm) method showed the lowest discrepancy in terms of the die model- crown fit. The C, SLS, and SM methods (63 μm; 61.6 μm; 67.7 μm) were statistically similar (P > .001). The highest discrepancy was observed on the occlusal area (87.1 μm), and the lowest discrepancy was observed on the axial area (47.7 μm) of the coping. Porcelain firing had a decrease in the discrepancy values (P = .001).
conclusionAll CAD/CAM techniques are appropriate for clinical use; selective laser sintering and soft milling can be the more recommended methods for the compatibility of metal-porcelain restorations, as they have lower discrepancy values than the SLM and HM methods.
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