Table 2.
Summary of safety testing, reporting and 3D- printing parameters.
| Authors | Publication date | Safety testing | Use of SQUIRE2.0 guidelines | Regulatory approvals | Printer used | Material used | Printing parameters / post-processing | Print time / cost | Model print file availability |
|---|---|---|---|---|---|---|---|---|---|
| Hung et al | 21-May-20 | Not described | No | No | Not described | Not described | Not described | Not specified | STL file available from chris.r.hung@gmail.com |
| Jacob et al | 11-May-20 | Not described | No | No | Not described | Polylactic acid | Not described | Not specified | Provided by author as online supplementary file |
| Cox et al | 09-May-20 | Before clinical use | No | No | Prusa®, MK3s | Polyethylene terephthalate glycol | Layer height 0.15 mm; nozzle temperature: 250 °C, bed temperature: 90 °C. | 5 min for one or fifty in 3 h and 40 min | By request from: www.unemed.com, NIN No.: 20,081 |
| Khoo et al | 07-May-20 | Tested using an adapted version of the National Institute of Occupational Safety and Health guidelines for PARP | No | No | Not described | Acrylonitrile Butadiene Styrene | Not described | £17 for 3D printed parts | Not provided |
| Amin et al | 01-May-20 | Not performed | No | No | Prusa®, RC2 | Polylactic acid or Acrylonitrile Butadiene Styrene | Printer speed 80–100 mm/s | 5 h to print 200 frames at a cost of $7.30 each | https://airwolf3d.com/2020/03/27/covid-19-face-shield-3d-printable-file/ |
| Sapoval et al | 18-Apr-20 | Qualitatitve assessment of ability to perform task, visual comfort and tolerability | No | No | Commercially available three-dimensional (3D) printers. | Not described | Not described | Not specified | Not provided |
| Maracaja et al | 13-Apr-20 | Not performed | No | No | Formlabs2 | Tough 1500 and Draft resin | Requires alcohol wash for 10–20 min and UV curing for 60 min | 10 frames in 3.5 h; 1 L of the resin could generate approximately 100 frames | Not provided |
| Erickson et al | 18-Apr-20 | Final quality control testing performed | No | No | Formlabs printers and their “durable” material | Durable Formlabs material | Not described | Not specified | Available through Duke's office of Licensing and Ventures |
| Liu et al | 29-Apr-20 | Not performed | No | No | Ultimaker S5 3D printer | Polylactic acid | Printing parameters described in Online Appendix S1 of authors manuscript | £3 / $3.73 / 3.5 euros for each 3D printed adaptor | Not described |
| Swennen et al | 02-Apr-20 | Not performed | No | No | Selective laser sintering (SLS) 3D printer (Prodways, Les Mureaux, France; https://prodways.com) | Polyamide composite (PA11-SX 1450 Prodways,Les Mureaux,France) | Requires sandblasting and vacuum cleaning after printing | 4 masks with filter supports took 11 h with an additional 12 h of post-processing. | Provided by author as online supplementary file |