The Influence of Printing Orientation on the Properties of 3D-Printed Polymeric Provisional Dental Restorations: A Systematic Review and Meta-Analysis.
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引用次数: 0
Abstract
Three-dimensional printing is commonly used to fabricate provisional dental restorations. Studies have reported that changes in printing orientation affect the physical and mechanical properties of 3D-printed polymeric provisional restorations; however the findings have been inconsistent. Therefore, this systematic review and meta-analysis aims to analyze the articles evaluating the influence of printing orientation on the physical and mechanical properties of 3D-printed polymeric provisional dental restorations. Recommendations provided by the Preferred Reporting Items for Systematic Reviews and Meta-Analyses (PRISMA) guidelines were followed to structure and compose the review. The PICO (Participant, Intervention, Comparison, Outcome) question ordered was: 'Do 3D-printed provisional dental restorations (P) printed at various orientations (except 0°) (I) exhibit similar physical and mechanical properties (O) when compared to those printed at a 0° orientation (C)?'. An electronic search was conducted on 28 and 29 April 2025, by two independent researchers across four databases (MEDLINE/PubMed, Scopus, Cochrane Library, and Web of Science) to systematically collect relevant articles published up to March 2025. After removing duplicate articles and applying predefined inclusion and exclusion criteria, twenty-one articles were incorporated into this review. Self-designed Performa's were used to tabulate all relevant information. For the quality analysis, the modified CONSORT scale was utilized. The quantitative analysis was performed on only fifteen out of twenty-one articles. It can be concluded that the printing orientation affects some of the tested properties, which include fracture strength (significantly higher for specimens printed at 0° when compared to 90°), wear resistance (significantly higher for specimens printed at 90° when compared to 0°), microhardness (significantly higher for specimens printed at 90°and 45° when compared to 0°), color stability (high at 0°), and surface roughness (significantly higher for specimens printed at 45° and 90° when compared to 0°). There were varied outcomes in terms of flexural strength and elastic modulus.
三维打印通常用于制作临时牙齿修复体。有研究报道，打印方向的变化会影响3d打印聚合物临时修复体的物理和机械性能；然而，研究结果并不一致。因此，本系统综述和荟萃分析旨在分析评估打印方向对3d打印聚合物临时牙修复体物理力学性能影响的文章。根据系统评价和荟萃分析（PRISMA）指南的建议，构建和撰写综述。PICO（参与者，干预，比较，结果）问题是：“与以0°方向(C)打印的3d打印临时牙科修复体(P)相比，以不同方向（0°除外）打印的3d打印临时牙科修复体(I)是否表现出相似的物理和机械性能(O) ?”2025年4月28日和29日，两名独立研究人员对四个数据库（MEDLINE/PubMed、Scopus、Cochrane Library和Web of Science）进行了一次电子检索，系统地收集了截至2025年3月发表的相关文章。在删除重复的文章并应用预定义的纳入和排除标准后，21篇文章被纳入本综述。使用自行设计的forma表格将所有相关信息制成表格。质量分析采用改良的CONSORT量表。定量分析仅对21篇文章中的15篇进行了分析。可以得出结论，打印方向影响了一些测试性能，包括断裂强度（与90°相比，0°打印的样品明显更高），耐磨性（与0°相比，90°打印的样品显着更高），显微硬度（与0°相比，90°和45°打印的样品显着更高），颜色稳定性（0°时高），表面粗糙度（与0°打印相比，45°和90°打印的样品明显更高）。在抗弯强度和弹性模量方面有不同的结果。
期刊介绍：
Journal of Functional Biomaterials (JFB, ISSN 2079-4983) is an international and interdisciplinary scientific journal that publishes regular research papers (articles), reviews and short communications about applications of materials for biomedical use. JFB covers subjects from chemistry, pharmacy, biology, physics over to engineering. The journal focuses on the preparation, performance and use of functional biomaterials in biomedical devices and their behaviour in physiological environments. Our aim is to encourage scientists to publish their results in as much detail as possible. Therefore, there is no restriction on the length of the papers. The full experimental details must be provided so that the results can be reproduced. Several topical special issues will be published. Scope: adhesion, adsorption, biocompatibility, biohybrid materials, bio-inert materials, biomaterials, biomedical devices, biomimetic materials, bone repair, cardiovascular devices, ceramics, composite materials, dental implants, dental materials, drug delivery systems, functional biopolymers, glasses, hyper branched polymers, molecularly imprinted polymers (MIPs), nanomedicine, nanoparticles, nanotechnology, natural materials, self-assembly smart materials, stimuli responsive materials, surface modification, tissue devices, tissue engineering, tissue-derived materials, urological devices.
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