Graphy, a South Korean-based manufacturer of 3D printable photopolymer resins, has unveiled what it claims is the “world’s first” direct 3D printed aligner that features a shape memory function.
Graphy’s 3D printed aligner isreportedlythe only one currently available on the market that has this feature, which the company says will accelerate the treatment process for patients and remove the need for replacement aligners.
该公司在今年展示了其新产品International Dental Show (IDS) 2021in Cologne between 22-25th September.
3D打印牙科对准器
According to the 2019 US National Health and Examination Survey,65 percent of Americans could benefit from orthodontic treatment, but many never receive it due to cost and accessibility barriers. The 3D printed dental market has seen a raft of new dedicated materials, hardware, and projects come to the fore over the past year, withpotential applications growing increasingly wider。
Several 3D printer manufacturers have recently launched new machines developed specifically for dental applications. For instance,StratasyS启动了其多物质PolyjetJ5 DentaJet3D printer in March, whilenexa3d推出了基于树脂的NXD200 3D打印机在四月和六月Uniz推出了最新的高速牙科3D打印机the NBEE。
Regarding materials,Liqcreatehas unveiled two newdental-oriented photopolymer resinS具有超低收缩和适合生产正畸型号的哑光效果，而桌面金属healthcare subsidiary桌面健康launched cobalt chrome on its Shop System to offer binder jet 3D printing capabilities to dental labs.
More recently,formlabs揭示several new dental-related updatesto its portfolio, including the dental validation of its Fuse 1 SLS 3D printer and reformulation of its Model Resin, and产品宣布已收到一份合同来生产a million dental aligners per year。
Graphy’s shape memory aligners
自2017年成立以来，Graphy一直在努力在牙科3D打印市场中开设自己的利基市场。该公司赢了许多奖项andregistered several patents对于其技术，最终旨在提高3D打印牙科市场的新材料的安全性和批量生产。
去年12月，该公司开发了自己的牙科3D打印材料，Tera Harz。可光化树脂具有柔韧性和耐热性，具有两个碳骨架，可允许材料的分子配方密切控制并根据特定的客户需求进行定制。
If deformed or stretched, Tera Harz’s shape can be restored when it comes into contact with hot water, which is what gives Graphy’s dental aligners their shape memory function. According to the firm, dental aligners from other companies are not able to return to their original shape after becoming deformed, and therefore lose their orthodontic force and need to be replaced.
借助Tera Harz的形状内存属性，与两到三个对准器的平均要求相比，单个牙科对准器能够完成整个治疗步骤。因此，这加快了治疗过程，同时还减少了每位患者使用的材料量。
3D printing a clear aligner with Tera Harz can reportedly take as little as one hour, whereas conventionally manufactured aligners can take between one and two weeks to be produced. The company also claims the material streamlines manufacturing operations and costs as film or vacuum forming processes are not required.
关于清洁，由于材料的刮擦性和在高达100摄氏度的热水中持续一到两分钟，图形的3D打印牙齿对准器能够刷和消毒。
从功能上讲，该公司的牙科对准器比其他对准器具有几个优势，例如能够向后移动牙齿并旋转牙齿最多35摄氏度，据报道，这一壮举是市场上其他人无法实现的壮举。Graphy的牙科对准器已获得CE认证，并正在美国食品药品监督管理局（FDA）的510（k）批准。
Ultimately, Graphy believes its Tera Harz material could make one-day orthodontic treatment a possibility for patients, while enabling dental laboratories to produce large volumes of products with minimal factory investment.
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Featured image showsdental aligners 3D printed with Graphy’s Tera Harz material. Image via Graphy.
