Division of Dentofacial Anomalies, Department of Orthodontics and Dentofacial Orthopedics, Wroclaw Medical University, Poland.
Department of Experimental Dentistry, Wroclaw Medical University, Poland.
Dent Med Probl. 2023 Jul-Sep;60(3):505-511. doi: 10.17219/dmp/166070.
Three-dimensional (3D) printing technology has brought much innovation to medicine and has been successfully adopted in many areas of dentistry. Although 3D printing techniques are being increasingly used, their advantages and disadvantages still need to be investigated, particularly with regard to the materials used in dentistry. Dental materials should be biocompatible and non-cytotoxic, and have sufficient mechanical integrity in the oral environment in which they are intended for use.
The present work aimed to identify and compare the mechanical properties of three 3D-printable resins. The materials included IBT Resin, BioMed Amber Resin and Dental LT Clear Resin. The Formlabs Form 2 printer was used.
A tensile strength test was performed on 10 specimens of each resin. Tensile modulus was measured on 2-millimeter-thick dumbbell-shaped specimens, 75 mm in length and 10 mm in width. The 10 specimens of each resin were mounted between the grips of a universal testing machine (Z10-X700).
The results showed that BioMed Amber specimens cracked easily, yet no deformation was observed. The amount of force used to test the tensility of the specimens was the lowest for IBT Resin, while it was the highest for Dental LT Clear Resin.
IBT Resin was the weakest material, whereas Dental Clear LT Resin was the strongest.
三维（3D）打印技术为医学带来了许多创新，并已成功应用于牙科的许多领域。尽管 3D 打印技术的应用越来越广泛，但仍需要对其进行研究，特别是对牙科中使用的材料。牙科材料应具有生物相容性和非细胞毒性，并在预期使用的口腔环境中具有足够的机械完整性。
本研究旨在鉴定和比较三种可 3D 打印的树脂的机械性能。所用材料包括 IBT 树脂、BioMed Amber 树脂和 Dental LT Clear 树脂。使用了 Formlabs Form 2 打印机。
对每种树脂的 10 个样本进行拉伸强度测试。在厚度为 2 毫米、长度为 75 毫米、宽度为 10 毫米的哑铃形样本上测量拉伸模量。每种树脂的 10 个样本均安装在万能试验机（Z10-X700）的夹具之间。
结果表明，BioMed Amber 样本容易开裂，但没有观察到变形。用于测试样本拉伸强度的力最小的是 IBT 树脂，而最大的是 Dental LT Clear 树脂。
IBT 树脂是最脆弱的材料，而 Dental Clear LT 树脂是最强的。
