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Article Abstract
Statement Of Problem: Adjusting the postpolymerization of 3-dimensionally (3D) printed resins can enhance their physical and mechanical properties, improving clinical performance. Understanding which properties may be affected by extended exposure duration is important.
Purpose: The purpose of this systematic review was to investigate the influence of postpolymerization exposure duration on the physical and mechanical properties of 3D printed resins.
Material And Methods: Following the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines and registration with osf.io/hxq82, searches were conducted in 6 databases, including non-peer-reviewed literature. The risk of bias was assessed using a tool designed for quasi-experimental studies. Two independent reviewers selected and evaluated studies based on eligibility criteria.
Results: Of 1316 identified articles, 24 met the inclusion criteria. Overall, longer postpolymerization exposure durations increased the flexural strength, microhardness, and degree of conversion. However, some studies reported similar results with shorter exposures. Outcomes varied depending on postpolymerization equipment, resin composition, and polymerization aspects, including heating and oxygen inhibition.
Conclusions: Postpolymerization duration significantly influenced the physical and mechanical properties of 3D printed resins. Nevertheless, variations in materials, printing parameters, and postprocessing protocols limit the generalizability of findings.
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| http://dx.doi.org/10.1016/j.prosdent.2025.08.019 | DOI Listing |
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