Dental Crown & Bridge Resin LTT
Grade
also Crown & Bridge Resin
LTT = long-term temporary / provisional resin
Higher-filled provisional grade for implant healing phases and long-span bridges worn for months.
Values for the LTT condition
Other Dental Crown & Bridge Resin grades and fills
Dental Crown & Bridge Resin is listed in 4 conditions; see the grade overview at Dental Crown & Bridge Resin.
Compare all 4 grades and fillsHide
| Grade · open for datasheet | Best for | Yield MPa | Tensile MPa | Elong. % | Hardness |
|---|---|---|---|---|---|
VITA shade range | Same base chemistry pigmented to a VITA shade; pick to match the patient's dentition — mechanical properties are essentially unchanged, only optical values shift. | 50 | 55 | 3.5 | 85 Shore D |
TEMPDefault Temporary crown & bridge resin | Standard chairside temporary crowns, bridges, inlays and long-span provisionals worn up to about 30 days. | — | 55 | 3.5 | 85 Shore D |
LTTThis page Long-term temporary / provisional resin | Higher-filled provisional grade for implant healing phases and long-span bridges worn for months. | — | 60 | 2.5 | 86 Shore D |
Permanent single-crown resin, ceramic nano-filled | Choose for definitive single crowns, inlays/onlays and veneers where wear resistance and >12-month intraoral service are required. | — | 65 | 1.6 | 88 Shore D |
What is Dental Crown & Bridge Resin LTT?
Dental Crown & Bridge Resin LTT is Dental Crown & Bridge Resin in the LTT grade — higher-filled provisional grade for implant healing phases and long-span bridges worn for months. Dental Crown & Bridge Resin LTT has a tensile strength of 60 MPa (8.7 ksi), stronger than 68% of polymer grades. Elongation at break is 2.5% and the elastic modulus is 3.1 GPa (0.45 Msi). Dental Crown & Bridge Resin LTT has a density of 1.26 g/cm³ (0.0455 lb/in³), heavier than 66% of polymer grades. Its glass-transition temperature is 105°C (221 °F). TEMP is the default condition FabDigit quotes; LTT is available on request or by drawing note.
Advantages
- Polishes to a fine finish — 90/100, better than 96% of polymer grades
Limitations
- High mold shrinkage — 2.5%, worse than 93% of polymer grades
- Limited ductility — 2.5%, worse than 89% of polymer grades
- Low fracture toughness — 1.2 MPa·√m (1.09 ksi·√in), worse than 77% of polymer grades
Dental Crown & Bridge Resin LTT properties
Typical room-temperature values for Dental Crown & Bridge Resin LTT; 14 are specific to this condition. Other listed values are Dental Crown & Bridge Resin reference data and may not represent this condition. Bars are the position among polymer grades.
Physical6
Dental Crown & Bridge Resin LTT has a density of 1.26 g/cm³ (0.0455 lb/in³), heavier than 66% of polymer grades. Its glass-transition temperature is 105°C (221 °F).
Mechanical14
Dental Crown & Bridge Resin LTT has a tensile strength of 60 MPa (8.7 ksi), stronger than 68% of polymer grades. Elongation at break is 2.5% and the elastic modulus is 3.1 GPa (0.45 Msi).
Thermal8
Dental Crown & Bridge Resin LTT is rated for continuous service to 80°C (176 °F). It conducts heat at 0.25 W/m·K (0.144 BTU/hr·ft·°F), better than 72% of polymer grades. Thermal expansion is 58 µm/m·K (32.2 µin/in·°F).
Electrical3
Dental Crown & Bridge Resin LTT has an electrical resistivity of 1×10¹² Ω·m.
Chemical & Environmental2
UV resistance is fair.
Sustainability3
Producing a kilogram of Dental Crown & Bridge Resin LTT takes about 105 MJ of energy and emits 5.5 kg of CO₂ — more than 54% of polymer grades. Typical recycled content is 0%.
Manufacturability3
Dental Crown & Bridge Resin LTT's machinability is good (55/100, worse than 64% of polymer grades).
Values are nominal handbook figures for design screening. Confirm any required mill or lot documentation when quoting.
Working with Dental Crown & Bridge Resin LTT
Is Dental Crown & Bridge Resin easy to machine?
Post-cured parts trim, grind and adjust readily with carbide burs and diamond discs at moderate speed; use water/vacuum for dust and avoid heat build-up that chips margins.
Can Dental Crown & Bridge Resin be welded?
Not weldable — thermoset network; repairs are made by bonding flowable light-cure composite to a roughened, silanated surface.
Can Dental Crown & Bridge Resin be formed, bent or molded?
Vat photopolymerization only (SLA/DLP/LCD at 385 or 405 nm, 50–100 µm layers); shake/stir the pigmented filled resin before printing, then wash in fresh IPA for the validated short cycle and post-cure under inert gas or glycerin to full conversion.
What surface finishes work on Dental Crown & Bridge Resin?
Finish with fine silicone points and pumice, then a diamond polishing paste or light-cure glaze for a plaque-resistant, tooth-like gloss.
Dental Crown & Bridge Resin chemical composition (wt %)
Limits by weight percent from the governing specification, written the way the spec states them — a single maximum for impurities, a range for alloying elements, and the base element as balance. Nominal is the typical mid-range value.
| Element | Spec limit (wt %) | Nominal |
|---|---|---|
| urethane dimethacrylate (UDMA) oligomermain crosslinking oligomer | 20 – 55 | 35 |
| ethoxylated bisphenol-A dimethacrylate ( | 5 – 30 | 15 |
| low-viscosity methacrylate diluent (TEGDviscosity control | 3 – 20 | 10 |
| silanized silica / glass-ceramic filler20–35 % in temporary grades, 30–50 % in permanent crown grades | 15 – 55 | 35 |
| photoinitiator (TPO / BAPO)matched to 385 or 405 nm | 0.3 – 2 | 1 |
| pigments, stabilizers, inhibitorsVITA shade pigments + fluorescent agents | 0.1 – 2 | 0.7 |
Dental Crown & Bridge Resin LTT — frequently asked
What is Dental Crown & Bridge Resin LTT used for?
Dental Crown & Bridge Resin LTT is typically used for temporary crowns, provisional bridges and veneers. In short: tooth-shaded filled resin; wear-resistant restorative grade; temporary to permanent options.
What is the tensile strength of Dental Crown & Bridge Resin LTT?
Dental Crown & Bridge Resin LTT has a typical tensile strength of 60 MPa (8.7 ksi) — stronger than 68% of polymer grades. Strength varies by condition: see the 4 listed tempers.
Is Dental Crown & Bridge Resin LTT easy to machine?
Reasonably — machinability is rated good (55/100, worse than 64% of polymer grades). Post-cured parts trim, grind and adjust readily with carbide burs and diamond discs at moderate speed; use water/vacuum for dust and avoid heat build-up that chips margins.
Can Dental Crown & Bridge Resin LTT be welded?
Not weldable — thermoset network; repairs are made by bonding flowable light-cure composite to a roughened, silanated surface.
What surface finishes work on Dental Crown & Bridge Resin LTT?
Finish with fine silicone points and pumice, then a diamond polishing paste or light-cure glaze for a plaque-resistant, tooth-like gloss.
Can Dental Crown & Bridge Resin LTT be formed, bent or molded?
Vat photopolymerization only (SLA/DLP/LCD at 385 or 405 nm, 50–100 µm layers); shake/stir the pigmented filled resin before printing, then wash in fresh IPA for the validated short cycle and post-cure under inert gas or glycerin to full conversion.
What is the maximum service temperature of Dental Crown & Bridge Resin LTT?
Dental Crown & Bridge Resin LTT is rated for continuous use to about 80°C (176 °F), and briefly to 120°C. Strength falls off well before that limit — check the elevated-temperature data for load-bearing parts.
What is the difference between Dental Crown & Bridge Resin TEMP and Dental Crown & Bridge Resin SHADE?
TEMP is the default condition — standard chairside temporary crowns, bridges, inlays and long-span provisionals worn up to about 30 days. SHADE: same base chemistry pigmented to a VITA shade; pick to match the patient's dentition — mechanical properties are essentially unchanged, only optical values shift.
Sources
- ISO 10477 Dentistry — Polymer-based crown and veneering materials — ISO (2020)
- ISO 4049 Dentistry — Polymer-based restorative materials — ISO (2019)
- ISO 10993-1 Biological evaluation of medical devices — Part 1 — ISO (2018)
- Dental crown & bridge / permanent crown photopolymer technical data sheets — NextDent (Vertex-Dental), DETAX, BEGO, Formlabs Dental (2024)
- Craig's Restorative Dental Materials — resin composites chapter — Elsevier (2018)
Property data is compiled from published supplier and standards handbooks and normalised for comparison. Nothing on this page is a certification — request mill certs, CoC or material test reports with your order.