Impact of Raster Angles on the Mechanical Performance of 3D Printed Face Shield.

IF 3.1 3区医学 Q2 DENTISTRY, ORAL SURGERY & MEDICINE

Dental Traumatology Pub Date : 2025-08-20 DOI:10.1111/edt.70013

Victor Paes Dias Gonçalves, Ellen Bernardes de Lima, Carlos Maurício Fontes Vieira, Noan Tonini Simonassi, Neide Pena Coto, Lucas Thomazotti Berard, Henry A Colorado, Felipe Perissé Duarte Lopes

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引用次数: 0

Abstract

Introduction/objectives: This study investigated the influence of raster angles on the mechanical properties of 3D-printed facial protectors using polylactic acid and thermoplastic polyurethane materials.

Materials and methods: Shore D hardness, impact resistance, tensile, and compression tests were conducted to evaluate material performance under different printing orientations.

Results: Polylactic acid maintains relative hardness consistency regardless of the printing orientation, while thermoplastic polyurethane exhibits greater variability. In terms of impact resistance, thermoplastic polyurethane outperformed polylactic acid, making it more suitable for applications requiring high energy absorption. Tensile tests revealed that raster orientation significantly affected the mechanical properties, with polylactic acid showing higher tensile strength at 0° raster and thermoplastic polyurethane demonstrating greater ductility. In compression, polylactic acid maintained more consistent strength, whereas thermoplastic polyurethane showed greater variability.

Conclusions: The material type and print orientation selection should be tailored to specific application needs, highlighting the advantages of 3D printing for customizing and optimizing facial protection devices.

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栅格角度对3D打印面罩力学性能的影响

介绍/目的：本研究研究了栅格角度对3d打印聚乳酸和热塑性聚氨酯面部保护器力学性能的影响。材料与方法：通过邵尔D硬度、抗冲击性、拉伸和压缩试验来评价材料在不同印刷方向下的性能。结果：无论打印方向如何，聚乳酸保持相对硬度一致性，而热塑性聚氨酯表现出更大的变异性。在抗冲击性方面，热塑性聚氨酯优于聚乳酸，使其更适合需要高能量吸收的应用。拉伸试验表明，栅格取向对机械性能有显著影响，聚乳酸在0°栅格处表现出更高的拉伸强度，热塑性聚氨酯表现出更大的延展性。在压缩，聚乳酸保持更一致的强度，而热塑性聚氨酯表现出更大的变异性。结论：材料类型和打印方向的选择应根据具体的应用需求进行定制，突出3D打印在面部保护装置定制和优化中的优势。

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

Dental Traumatology 医学-牙科与口腔外科

CiteScore

6.40

自引率

32.00%

发文量

审稿时长

6-12 weeks

期刊介绍： Dental Traumatology is an international journal that aims to convey scientific and clinical progress in all areas related to adult and pediatric dental traumatology. This includes the following topics: - Epidemiology, Social Aspects, Education, Diagnostics - Esthetics / Prosthetics/ Restorative - Evidence Based Traumatology & Study Design - Oral & Maxillofacial Surgery/Transplant/Implant - Pediatrics and Orthodontics - Prevention and Sports Dentistry - Endodontics and Periodontal Aspects The journal"s aim is to promote communication among clinicians, educators, researchers, and others interested in the field of dental traumatology.