UNIZ zSG Surgical Guide 3D Printer Instructions
- June 13, 2024
- UNIZ
Table of Contents
UNIZ zSG Surgical Guide 3D Printer
Instruction for Use
Product Discription
zSG is a light-curing resin for the fabrication of implant surgical guides
using 3D LCD printers utilizing wavelengths between 385nm–405nm. zSG is a
fast-printing resin with excellent properties, including high strength, high
precision, easy-cleaning and well sterilization compatibility.
Intended Use
Implant surgical guides
Color and Package
Colorless clear, 500ml/bottle
Contra-indications:
zSG contains (meth)acrylates and phosphine oxide. zSG should therefore not be
used in patients with a known hypersensitivity (allergy) to these ingredients.
In case of an allergic reaction, please contact a medical physician.
Use and Safety Information
- Wear nitrile rubber gloves and a face mask when using this resin.
- Keep the room ventilated.
- Swallowing such as eating and drinking is forbidden in the printing place.
- Avoid liquid or uncompletely cured resin directly contact with skin. If contact with skin occurs, wipe resin away and wash thoroughly with cold water, use hand sanitizer or soap to assist in washing. If the users still feel uncomfortable, please see a doctor immediately.
- If the user accidentally splashes the resin in the eyes, flush with plenty of water and seek medical attention immediately.
- More safety details please refer MSDS of this resin.
The good using temperature for this resin is 21 – 25℃. Keep the resin away from direct sunlight or any kind of UV light.
Processing printed parts
Mixing resin before using
In Bottle: Shake bottle vigorously prior to pouring into resin tank.
In resin tank: Stir resin with a soft spatula. Take care not to damage the
film of the resin tank. After surgical guide is printed, it is recommended to
restore the remaining resin into bottle and avoided leave the resin in the
resin tank for a long time.
Preparation
Prepare a print job using slicing software, such as Uniz Dental, Uniz Desktop
or Uniz Maker, in depending with the UNIZ printer type. zDental Splint can be
printed in layer thickness of 50μm or 100μm. For more information, please
refer to the Uniz Dental Software Guide (www.uniz.com).
Printing
Turn on the printer and ensure it well. Check and clean build platform, resin
tank, LCD printing screen. Put the resin tank filled with mixed resin onto the
LCD printing screen, and fix the tank well onto the screen. Upload the slicing
file into printer through USB or WIFI, then start printing. For more
information, refer to the printer instructions (www.uniz.com).
Post-processing
Detaching printed parts
Once the printing process has ended, a dripping time of resin approximately 10
min is recommended, using a soft spatura to remove the resin residue on the
build platform into resin tank. Then, carefully detach the printed objects
from the build platform.
Washing:
Wash parts in IPA bath with at least 98% purity. Best results are achieved
when using a pre and post wash. UWash ultrasonic cleaner is recommended for
washing parts.
- Pre-wash bath: 1 minute. After using, if the IPA density increases 5%, alternate clean IPA for this pre-washing step.
- Post-wash bath: 1 minute, always use clean IPA for each post-washing step.
If necessary, a dedicated soft brush can be used to help for removing residual resin.
Drying
Use compressed air to dry parts. If residual resin remains, repeat the
“washing-drying“ steps. Ensure parts to dry thoroughly before post-curing.
Post-Curing
Post-curing is an UV-LED light treatment to ensure that printed parts obtain
optimal polymer conversion, decreasing the residual monomer of printed parts
to a minimum and obtaining the required mechanical properties and surface
properties.
UCure, a post-cured devise from UNIZ, is recommended to cure parts. Both the
two sides of the printed parts are needed to be post-cured. Firstly, cure the
unsupported side of printed parts with support structure and allow the printed
parts to cool down to room temperature, then remove supports by same tools,
finally cure the supported side and cool the printed parts down to room
temperature for further operation. Insufficient cooling can distort the shape
of the printed parts.
- One side: 1 minute, level 2, UCure
- The Other side: 1 minute, level 2, UCure
Finishing and Polishing
Use a fine-toothed carbide bur or wheel rotary and handpiece to sand the
support stubs. Once the surface is finished to satisfaction, polish and smooth
the outside of printed parts for patient comfort.
For achieving a high gloss surface, the printed parts should first be pre-
polished with pumice stone. Then remove any pumice dust and remnants under
running water with a dedicated soft brush. Finally, use a buffer and high-
lustre polishing compound without exerting excessive pressure to polish the
object to a high gloss shine surface.
Final cleaning
Clean the printed parts thoroughly. Firstly, use a dedicated soft toothbrush
with neutral soap and room temperature water to clean the printed parts.
Finally, soak the pre-cleaned parts into unheated water and clean it with
ultrasound bath.
Disinfection
For disinfection, the finished parts can be soaked into 70% IPA less than 5
minutes.
Steam Sterilization
Autoclave at 134℃ for 20 minutes, or 121℃ for 30 minutes
Storage
Stored in dark place where avoid direct sunlight or any kind of UV light,
environment temperature is recommended around 15 to 28℃，and environment
humidity is less than 45%RH. Do not use resin which exceeds the expiry date.
Disposal
Dispose liquid resin waste in accordance with local regulations.
The information and data stated herein are based upon tests in our lab and are
considered to be reliable and accurate. This information and data are used for
reference only, no warranty as a legal basis. Use by customers should be
tested by themself firstly.