On the suitability of photocuring-assisted DIW for manufacturing complex prosthesis from commercial dental composites

IF 4.2 3区医学 Q2 ENGINEERING, BIOMEDICAL Journal of Materials Science: Materials in Medicine Pub Date : 2024-09-30 DOI:10.1007/s10856-024-06831-w

Florencia M. Nogales, Óscar Borrero-López, Antonia Pajares, Pedro Miranda

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Abstract

A 3-D printing method to produce dental prostheses of complex shapes from a commercial, photocurable resin-ceramic slurry is developed and optimized. The microstructure, mechanical properties and wear behavior of the resulting material are evaluated and compared with a conventional/control sample and other ceramic-polymer dental composites. Commercial resin-ceramic dental slurries can be successfully extruded and appropriately photocured in a low cost 3-D printing system to produce cost-efficient complex dental parts that could be used in indirect restorations. The printing process does not appreciably introduce defects in the material and the 3-D printed composites exhibit mechanical properties (hardness, elastic modulus) and wear resistance comparable to the control material and analogous, conventional dental composites. The main wear mechanisms under sliding contact against a hard antagonist are plastic deformation at the asperity level and ceramic particle pull-out due to filler/matrix interfacial weakness.

Graphical Abstract

3-D printing commercial resin-filler slurries creates cost-efficient tooth prostheses with properties akin to conventional dental composites

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用商用牙科复合材料制造复杂义齿的光固化辅助 DIW 的适用性。

本研究开发并优化了一种三维打印方法，可利用商业光固化树脂-陶瓷浆料生产形状复杂的牙科修复体。对所得材料的微观结构、机械性能和磨损行为进行了评估，并与传统/对照样本和其他陶瓷-聚合物牙科复合材料进行了比较。商用树脂-陶瓷牙科泥浆可以在低成本的三维打印系统中成功挤出并适当光固化，从而生产出具有成本效益的复杂牙科部件，可用于间接修复。打印过程不会在材料中产生明显的缺陷，3-D 打印复合材料的机械性能（硬度、弹性模量）和耐磨性与对照材料和类似的传统牙科复合材料相当。在与坚硬的拮抗剂滑动接触时，主要的磨损机制是基底层的塑性变形和由于填料/基质界面薄弱造成的陶瓷颗粒脱落。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

Journal of Materials Science: Materials in Medicine 工程技术-材料科学：生物材料

CiteScore

8.00

自引率

0.00%

发文量

审稿时长

3.5 months

期刊介绍： The Journal of Materials Science: Materials in Medicine publishes refereed papers providing significant progress in the application of biomaterials and tissue engineering constructs as medical or dental implants, prostheses and devices. Coverage spans a wide range of topics from basic science to clinical applications, around the theme of materials in medicine and dentistry. The central element is the development of synthetic and natural materials used in orthopaedic, maxillofacial, cardiovascular, neurological, ophthalmic and dental applications. Special biomedical topics include biomaterial synthesis and characterisation, biocompatibility studies, nanomedicine, tissue engineering constructs and cell substrates, regenerative medicine, computer modelling and other advanced experimental methodologies.