Crack Nemotec Dental Studio Nx Windows 7 18
Argelia Long
Precision Model Resin is a high-accuracy material for creating restorative models with >99% of printed surface area within 100 μm of the digital model. Create beautiful models with crisp margin lines thanks to high opacity, beige color, and a smooth, matte finish to capture fine details.
This application guide is a step-by-step walkthrough of the workflow for producing direct composite restoration guides with Formlabs IBT Flex Resin and Formlabs Dental 3D printers, specifically focusing on the production of guides used for direct composite technique (injected or pressed). This guide was developed in collaboration with Digital Smile Design (DSD). Always consult the official Manufacturing Guide and Instructions For Use for the absolute requirements.
IBT Flex Resin is a flexible, tear-resistant material for directly printing guided trays or indexes for composite restorations. Equipped with high flexibility, tear resistance, and translucency, this material's exceptional printing accuracy perfectly replicates digital designs, from a single restoration to a full smile, saving valuable technician time while delivering consistent, predictable outcomes.
In this section we will outline general design parameters and best practices for NEMO Smile design 3D software (NemoTec Company, Madrid, Spain). The fundamentals and recommendations can still be helpful for other treatment and planning software and should be reviewed.
You can also send the digital impression and requirements to a dental CAD outsourcing provider, like a dental design center or specialized dental laboratory, to create the appliance and manufacturing file.
Next, you need to define whether you will use the guides or indexes for injectable or pressed composite as the design and quantity of trays to be produced will vary depending on the technique chosen.
For DSD Direct Design, the indexes designed in your CAD software can be produced in 2 full arches for injectable technique (half designed & fully designed) or in sections if used for pressed composite technique.
In order to have the right rigidity, trays should have sufficient thickness. DSD recommends 4 mm as the ideal thickness for indexes for both injectable and pressed composite techniques on all their surfaces.
Adding windows to the guides will enable checking the fit of the appliances upon the dentition and guarantee optimal positioning regardless of the technique chosen. These elements shall be added to the teeth that will not be restored with the respective guides.
Once the case has been designed to specification, manufacturing can begin. The majority of dental design software generates a manufacturing file in STL format. Locate the file and move it into the print preparation software, PreForm Dental.
Select the material for printing by clicking the printer box in the Job Setup menu on the right-hand side.
Locate IBT Flex Resin in the material dropdown.
For direct composite restoration guides, select 50 micron layer height setting for the highest accuracy and optimal transfer of the digital design. You can also select 100 microns for faster prints.
Proper part orientation ensures part accuracy and fitment.
Always position the appliance with the intaglio surface facing away from the build platform. The part should be parallel to the build platform or at most have a 40-degree angle, with the anterior section toward the build platform.
Note: Printing times vary depending on object orientation and job setup.
When printing parts directly on the build platform, you will see a printability warning. If the part is snapped down to the build platform as outlined in the above section, it is okay to ignore this error.
Whether you are printing on support structures or directly on the build platform, position the parts so they do not overlap each other. Overlapping parts will be outlined in red.
To rotate the part while it is selected, click and drag the outer edge of the orientation sphere.
To move the part, click and drag anywhere on the part.
Once the layout is complete, the job is ready to send to the printer.
If starting with an empty resin tank, save time by manually pre-filling the tank by pouring in resin directly from the cartridge.
Note: Please verify printer and resin compatibility on the Formlabs support site before printing.
Place printed parts in a Form Wash or Form Wash L filled with isopropyl alcohol and wash them for the time established in the Manufacturing Guide.
Make sure the parts are fully submerged in IPA when washing.
Exceeding wash duration may affect dimensional accuracy and performance of printed parts over time.
Remove parts from IPA and leave to air dry at room temperature for at least 30 minutes in a well-ventilated area.
Compressed air can be used to help dry parts and allow for rapid inspection of unwashed resin. Still, allow for sufficient bench drying if using compressed air.
NOTE: Dry times can vary depending on the design of parts and ambient conditions. Do not let parts sit in IPA for longer than needed.
Inspect printed parts to ensure that parts are clean and dry. No residual alcohol, excess liquid resin, or residue particles must remain on the surface before proceeding to subsequent steps.
If any wet, uncured resin is still present after drying, use a squeeze bottle with fresh IPA to remove the uncured resin, then air dry the parts again. The use of compressed air allows for rapid inspection.
To maintain dimensional accuracy and biocompatibility, specific post-curing instructions must be followed.
Printed parts should be cured while submerged in a transparent, water-filled container inside a Formlabs validated curing unit (Form Cure, Form Cure L, or Fast Cure).
If direct composite restorative guides are printed with rafts and supports, cure with the raft side down. If the guides are printed directly on the build platform without supporting structures, place the part in the curing unit with the intaglio surface of the appliance facing up. Post-cure the parts in a Form Cure, Form Cure L, or Fast Cure using settings established in the Manufacturing Guide.
Allow the Form Cure or Form Cure L unit to cool down to room temperature between cure cycles.
If supports were used, remove the supports using a cutting disk and handpiece, cutting plier, or other appropriate finishing tools.
Note: While ripping the supports from the part might be quicker, it can leave divots in the part or damage the guide. We recommend cutting the supports off individually.
After support removal, if any support structures are left on the surface of the 3D printed direct composite restorative guide, you can remove them with a set of sharp iris scissors.
Inspect the appliance. Discard and reprint it if any damage or cracks are detected.
While working with dental professionals, we found that having the right UV curing light greatly improves the adhesion of the composite through the direct composite restorative guide. One fairly affordable, high-powered light we recommend is the Ledex WL-090+ Curing Light.
Appliances may be cleaned using neutral soap and water. The direct composite restorative guide may be cleaned and disinfected according to facility protocols.
Our tested method of disinfection involves soaking the finished direct composite restorative guides in fresh 70% IPA for 5 minutes.
After disinfection, inspect the part for cracks to ensure the integrity of the direct composite restorative guide.