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Great Lakes Invisacryl™ T

Built for patient compliance. Engineered to last.

Invisacryl T™ material formed into appliance for upper archInvisacryl T™ material formed into appliance for upper arch
Invisacryl T™ TPU material formed onto appliance on model of upper archInvisacryl T™ TPU material formed onto appliance on model of upper arch

A unique thermal plastic polyurethane material, Invisacryl™ T, is more elastic, flexible, and crack-resistant than other materials. It is stronger and more durable, making it ideal for aligners, finishing appliances, and bite guards.

Invisacryl™ T is available in individually sealed foil-wrapped pouches for longer storage life and comes in packages of 25 and 100.

Invisacryl™ T is available in individually sealed foil-wrapped pouches for longer storage life and comes in packages of 25 and 100.

  1. Invisacryl™ T Clear 0.76mm/125mm - Round (25/pkg)
    Invisacryl™ T Clear 0.76mm/125mm - Round (25/pkg)
    $88.75
    IN STOCK This product is in stock and ships the same day (before 12:00PM EST, Mon-Fri). Special requests during checkout may delay shipping.
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  2. Invisacryl™ T Clear 1mm/125mm - Round (25/pkg)
    Invisacryl™ T Clear 1mm/125mm - Round (25/pkg)
    $93.20
    IN STOCK This product is in stock and ships the same day (before 12:00PM EST, Mon-Fri). Special requests during checkout may delay shipping.
    Add to Compare
  3. Invisacryl™ T Clear 0.76mm/125mm - Round (100/pkg)
    Invisacryl™ T Clear 0.76mm/125mm - Round (100/pkg)
    $308.85
    LIMITED INVENTORY There are less than 10 of this product in stock. Order today.
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  4. Invisacryl™ T Clear 1mm/125mm - Round (100/pkg)
    Invisacryl™ T Clear 1mm/125mm - Round (100/pkg)
    $308.85
    LIMITED INVENTORY There are less than 10 of this product in stock. Order today.
    Add to Compare
AccuGUARD from Great Lakes protects against bruxism & grinding for $95AccuGUARD from Great Lakes protects against bruxism & grinding for $95
Invisacryl T™ TPU material formed onto appliance on model of upper archInvisacryl T™ TPU material formed onto appliance on model of upper arch

Ideal Clinical Cases for Invisacryl™ T:

  • Patients prone to fracturing single-layer PETG retainers3

  • Deep-bite cases at elevated risk of retainer breakage3

  • Post-aligner retention cases requiring elastic, form-stable retention

  • Patients who struggle with stiff appliances (compliance cases)1

  • Labs seeking a single-layer upgrade over PETG4

Patient Comfort & Compliance1

Single-layer TPU’s soft, elastic feel makes insertion and removal easy — patients are far more likely to wear a comfortable retainer consistently. Better wear = better outcomes.

Woman in dental chair looking at beautiful smileWoman in dental chair looking at beautiful smile

Fewer Remakes, Lower Costs3

TPU’s ductile elastomer properties mean it bends without fracturing — dramatically reducing costly remake requests from cracked PETG retainers.

Invisacryl T™ TPU Material aligner appliance held over abstract blurred out backgroundInvisacryl T™ TPU Material aligner appliance held over abstract blurred out background

Stability Under Repeated Wear2

Unlike single-layer PETG, single-layer TPU maintains a stable elastic modulus through thermocycling — meaning its properties hold up across weeks of daily insertion and removal.

Invisacryl T™ TPU Material aligner appliance on model held over abstract blurred out backgroundInvisacryl T™ TPU Material aligner appliance on model held over abstract blurred out background

Simple, Predictable Thermoforming

Single-layer TPU is reported to more accurately reproduce mold shapes than other materials4 — the handling characteristics differ from PETG, reflecting the material’s higher performance. A small adjustment in workflow delivers a significantly better end result.

MiniSTAR S® positive pressure thermal forming machine on dark gray backgroundMiniSTAR S® positive pressure thermal forming machine on dark gray background

Clinical References:

  1.  Patient comfort — TPU preferred over PETG for initial comfort. Effectiveness and Biocompatibility of Tooth Aligners Made from PeT-G, PP, PC, TPUs, and EVA: A Systematic Review. PMC / Journal of Orthodontic Science, 2024. pmc.ncbi.nlm.nih.gov/articles/PMC11001044

  2. Elastic modulus stability — single-layer TPU maintains stable elastic modulus through thermocycling; PETG degrades significantly. Differential Stability of One-layer and Three-layer Orthodontic Aligner Blends under Thermocycling. PMC, 2024. pmc.ncbi.nlm.nih.gov/articles/PMC10812913

  3. Fracture resistance & elasticity — TPU is a ductile elastomer providing high elasticity, formability, wearability, and shock absorption. Comparison of Translucency, Thickness, and Gap Width of Thermoformed and 3D-Printed Clear Aligners. Scientific Reports / Nature, 2023. nature.com/articles/s41598-023-36851-5

  4. Thermoforming accuracy — single-layer TPU more accurately reproduces mold shapes than other clear aligner materials. Thermoplastics for Clear Aligners: A Review. PMC, 2025. pmc.ncbi.nlm.nih.gov/articles/PMC12196624