Formlabs Dental LT Comfort Resin Cartridge for Form 3, 1L, 1.1kg

Transform your digital dentistry workflow with the Formlabs Dental LT Comfort Resin cartridge for Form 3, 1 L, 1.1 kg. Designed specifically for Form 3 series printers, this long-term biocompatible material enables the direct production of flexible occlusal splints and night guards (discharge splints) with exceptional ease. Combining durability with a comfortable, flexible fit, this resin produces high-quality devices that can be polished to a high optical clarity — significantly improving patient satisfaction and adherence to treatment plans.

A superior material for long-term wear devices

Greater flexibility for greater comfort

Create splints that patients will actually want to wear. Dental LT Comfort Resin is formulated to be flexible, providing a more forgiving and comfortable fit compared to rigid materials. This added comfort is key to improving patient acceptance and ensuring consistent compliance in long-term therapies.

Crystal-clear aesthetics

Achieve impressive optical clarity with minimal effort. Printed devices come out of the printer with a high degree of transparency and can be easily polished to a glass-like finish. This reduces manual finishing time whilst delivering a premium, near-invisible aesthetic that patients prefer.

High impact and wear resistance

Produce devices built to last. Designed to withstand the rigours of bruxism and daily use, this resin offers excellent impact and abrasion resistance. It ensures that night guards and splints maintain their integrity even in demanding therapeutic situations.

Certified biocompatibility

Deliver clinical treatments with complete confidence. Dental LT Comfort Resin is a rigorously tested material, biocompatible and safe for long-term intraoral use. It provides both clinicians and patients with the peace of mind required for effective dental care.

Primary applications

Dental LT Comfort Resin is the ideal choice for fabricating comfortable, flexible, and durable dental devices, including:

• Flexible occlusal splints
• Night guards (discharge splints)
• Custom whitening trays

Workflow guide: 3D printing occlusal splints

Follow this validated workflow to produce high-quality splints using your Formlabs Form 3 series printer.

Step 1: Scanning and design

Begin by taking a digital impression of the patient's dentition using an intraoral scanner or a desktop scanner for physical models. Import the scan data into your dental CAD software to design the splint. Ensure the design has a minimum thickness of 2.0 mm for occlusal surfaces and 1.5 mm for walls to guarantee durability. Export the final design as an STL file.

Step 2: Print on Form 3

Import the STL file into PreForm. Select "Dental LT Comfort" from the materials menu and choose a layer height of 100 microns. Orient the splint with the occlusal surface angled away from the build plate (typically 10–30 degrees) to ensure the best fit and minimise support marks in critical areas. Send the job to your Form 3 or Form 3B printer.

Step 3: Washing and curing

Wash the printed parts in a Form Wash using isopropyl alcohol (IPA, ≥96%) for 5 minutes. Do not exceed this time in order to maintain dimensional accuracy. Allow the parts to air-dry completely (at least 30 minutes). Once dry, place them in a Form Cure and post-cure at 60 °C for 60 minutes to achieve full biocompatibility and mechanical strength.

Step 4: Finishing and polishing

Remove support structures carefully using a cutting disc or pliers. Smooth any support marks with a burr. To achieve high optical clarity, use a polishing wheel and pumice for pre-polishing, followed by a high-gloss polishing compound on a cloth wheel. The result is a clear, smooth, and comfortable device ready for delivery.

Material properties

• Application: Dental
• Print technology: Stereolithography (SLA)
• Material type: Flexible
• Ultimate tensile strength: 29.1 MPa
• Tensile modulus: 994 MPa
• Elongation: 33%
• Flexural strength: 21 MPa
• Flexural modulus: 643 MPa
• Notched Izod impact: 98 J/m
• Shore D hardness: 75D

Your official Formlabs partner

As an official Formlabs representative, EXPERT3D guarantees the best price, official warranty, and professional service support. Our experts, with experience dating back to 2012, are here to advise you and help you make the right decision. Trust us for qualified support before, during, and after your purchase to ensure you achieve the best possible results with your 3D printing projects.