ArticleBMC research notes2024
The accuracy of custom-made metal posts manufactured using selective laser sintering versus conventional casting techniques: a laboratory study.
Article in BMC research notes, 2024. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 3 papers.
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The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
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Who cites it
3 citing papers in PubMed.
- Effect of Different Impression and Fabrication Techniques on the Precision of Custom Metal Posts: Fully Digital, Semi-Digital, and Conventional.Clinical and experimental dental research · 2026Article
- Influence of printing orientation on the accuracy, fit and mechanical properties of 3D-printed full-coverage prostheses: a systematic review.Frontiers in oral health · 2026Review
- Trueness and depth discrepancy of post-space scans using an intraoral scanner: influence of preparation dimensions: an in vitro study.BMC oral health · 2025Article
Corrections and comments
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Authors and funding
5 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThe purpose of this study was to evaluate the efficacy of selective laser sintering (SLS) against the traditional casting method in fabricating customized Co-Cr dental posts, employing 3D coordinate metrology for analysis.
methodsA 10 mm post space was prepared in a transparent acrylic block using a red ParaPost XP drill (1.25 mm diameter). An impression of this cavity was taken with a 1.143 mm diameter ParaPost impression post and auto-polymerizing acrylic resin. The resin patterns obtained were digitized with a Straumann Cares scanner, generating STL files, which were forwarded to Renishaw for the production of 10 Co-Cr posts through SLS. Simultaneously, the original resin patterns underwent investment and casting in Co-Cr alloy. The dimensional accuracy of the posts produced by both methods was evaluated using the triple scan method.
resultsThe mean discrepancy was - 0.048 mm when comparing the dimensions of scanned resin posts to those of the conventionally cast posts, and - 0.067 mm between the scanned SLS-produced posts and the original resin patterns. Statistical analysis indicated no significant difference between the two sets of mean values (P = 0.107).
conclusionSLS technology is a viable alternative to the conventional casting technique for the manufacture of customized Co-Cr posts. Furthermore, SLS offers advantages in terms of cost and time efficiency without compromising the accuracy of the end product.
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