厚度对用于正畸的 3D 打印树脂机械行为的影响

IF 3 Q3 MATERIALS SCIENCE, BIOMATERIALS
International Journal of Biomaterials Pub Date : 2024-06-25 eCollection Date: 2024-01-01 DOI:10.1155/2024/7398478
Theerasak Nakornnoi, Patamaporn Bunjerdjin, Peerapong Santiwong, Kawin Sipiyaruk, Siew Peng Neoh, Rochaya Chintavalakorn
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引用次数: 0

摘要

本研究旨在评估不同厚度的热成型和三维打印固位体的机械性能。热成型固位体(Duran)和三维打印固位体(Dental LT Clear V2 和 NextDent Ortho Flex)的厚度分别为 0.5、0.75 和 1 毫米。使用万能试验机(Instron Ltd., Buckinghamshire, England)对每种材料的五个样品进行了压缩、拉伸和弯曲测试。结果表明,每种材料的机械性能都受到厚度的显著影响。在所有三项测试中,厚度增加往往会提高强度和模量。然而,牙科 LT Clear V2 和 Duran 显示,抗弯强度和模量与厚度成反比。抗压测试表明,除 0.5 毫米的 NextDent Ortho Flex 外,3D 打印组的抗压性能明显更强。拉伸测试表明,所有厚度的 Dental LT Clear V2 拉伸强度和模量都明显更高,而任何厚度的 NextDent Ortho Flex 拉伸和弯曲性能都明显最低。总之,厚度对 3D 打印固位体的机械性能有很大影响。与热成型材料相比,厚度为 0.75 毫米的 Dental LT Clear V2 具有相似的机械性能,因此可作为制造固位体的替代材料。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
The Influence of Thickness on the Mechanical Behaviors of 3D Printing Resins for Orthodontic Retainers.

This study aimed to evaluate the mechanical behaviors of thermoformed and 3D-printed retainers with different thicknesses. Thermoformed retainers (Duran) and 3D-printed retainers (Dental LT Clear V2 and NextDent Ortho Flex) were fabricated at thicknesses of 0.5, 0.75, and 1 mm. Five samples of each material were subjected to compression, tensile, and flexural testing with the universal testing machine (Instron Ltd., Buckinghamshire, England). The results revealed that the mechanical behaviors were significantly influenced by thickness in each type of material. The increased thickness tended to increase strength and modulus in all three tests. However, Dental LT Clear V2 and Duran showed that flexural strength and modulus were inversely related to thickness. The compressive test revealed significantly greater compressive resistance in 3D-printed groups, except for the NextDent Ortho Flex at 0.5 mm. The tensile test showed that Dental LT Clear V2 at all thicknesses demonstrated significantly higher tensile strength and modulus, while NextDent Ortho Flex was significantly lowest at any thickness in tensile and flexural properties. In conclusion, the thickness significantly influenced the mechanical behaviors of the 3D-printed retainers. The 0.75 mm thickness of Dental LT Clear V2 could be considered as an alternative to fabricated retainers due to its similar mechanical properties compared with the thermoformed material.

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来源期刊
International Journal of Biomaterials
International Journal of Biomaterials MATERIALS SCIENCE, BIOMATERIALS-
CiteScore
4.30
自引率
3.20%
发文量
50
审稿时长
21 weeks
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