Document Type : Original Article
Authors
1
Associate Professor, Egyptian Armed Forces Military Medical Academy
2
BDS, Teaching Assistant Galala University (Fixed Prosthondontics)
Abstract
This literature review examines the clinical performance, innovation, and effectiveness of 3D printed hybrid ceramics and resin materials for definitive dental restorations. Based on 29 peer reviewed articles published from 2018 to 2025, addresses flexural strength, fracture resistance, marginal fit, surface finish, biocompatibility, color stability, and how printing orientation, layer thickness, and post processing influence outcomes.
3D-printed hybrid ceramics show promising structural behavior in single-unit crowns and provisional prostheses, with benefits including customization, reduced production time, and material conservation. Limitations are color instability, microbial adhesion, and variable mechanical performance under cyclic loading. Differences between printing technologies, particularly stereolithography (SLA) and digital light processing (DLP), dimensional accuracy, surface finish, and internal fit.
New printers such as the SprintRay Midas that utilizes Digital Press Stereolithography (DPS) is a new category of printers that can effectively handle highly filled hybrid ceramic resins, thus potentially bridging the gap with subtractive manufacturing in strength, accuracy, and speed.
In summary, 3D printed hybrid ceramics provide a viable alternative to milled materials for some clinical applications. Ongoing refinement of material composition, printer technology, and standardized methodologies is required to overcome inherent difficulties and to warrant long-term clinical success.
Materials and Methods
This review assesed the mechanical, esthetic, biological, and clinical performance of 3D-printed hybrid ceramics and resin-based materials. A comprehensive search across PubMed, Web of Science, and Google Scholar targeted peer-reviewed studies (2018–2025) evaluating material properties, comparing 3D-printed and milled restorations, or examining 3D printing technologies in prosthodontics.
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