ArticleBMC oral health2025
Influence of the print orientation and cast thickness on the accuracy of DLP master casts for fixed dental prostheses.
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 4 papers.
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Who cites it
4 citing papers in PubMed.
- Material-dependent trueness of intraoral scanners: A comparative analysis of three scanning technologies for different crowns - An in vitro study.Journal of Indian Prosthodontic Society · 2026Article
- Effect of 3D printing technology, build orientation, and shell thickness on the accuracy of full-arch dental models for fixed dental prostheses: an in vitro study.Scientific reports · 2025Article
- Dental Casts for Fixed Dental Prostheses Printed with SLA Technology: Influence of External Shell Thickness and Printing Orientation.Materials (Basel, Switzerland) · 2025Article
- Stress evaluation of different cad-on material combinations in crown design over conventional hand-layered zirconia - an in vitro 3d finite element analysis.Revista cientifica odontologica (Universidad Cientifica del Sur)Article
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Authors and funding
6 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
backgroundThis study aimed to evaluate the influence of different print orientations and external shell thickness on the accuracy of master casts printed with direct light processing (DLP) technology for fixed dental prostheses.
methodsSeventy-two maxillary hollow master casts were printed with a DLP printer from a standard tessellation language (STL) reference file with dental preparations for a single crown and a 3-unit fixed partial denture. Study groups consisted of six groups (n = 12) according to the print orientation (0, 10, and 20 degrees) and the external shell thickness of the cast (2 mm and 4 mm). Each specimen was digitized with a laboratory scanner. Discrepancies between the reference STL and the experimental STL of the printed cast were measured by using the root mean square (RMS) error. Data were statistically analyzed using one-way ANOVA and Tukey's HDS test to evaluate the trueness, and precision was assessed using the Levene test (α = 0.05).
resultsNo significant differences were found in the overall trueness and precision between the groups analyzed for the print orientation and the shell thickness. The 2-mm external shell thickness demonstrated the best trueness on selected points.
conclusionsThe print orientation in the range of 0 to 20 degrees and the cast thickness did not influence the overall accuracy of DLP-printed master casts for fixed prostheses with clinically acceptable range values. Trueness was affected by the external shell thickness on selected points.
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