Core build-up materials are used when there is not enough healthy tooth left for proper crown placement. Building up the core of the tooth with resin or plastic composites allows for better retention of the crown and reduced sensitivity while strengthening the tooth itself. Composition of core build-up materials should be close to that of dentin. Core build-up materials may be light-cured, self-cured or dual cured. A benefit of dual cure is the assurance of complete curing even in areas that may be hard to reach for the curing light. Curing times vary but are often completed within 5 minutes. Vendors often offer a compatible natural or opaque shade as well as a contrasting color for easy core identification. For easy application, many vendors offer auto-mix syringes with needle tips for perfect placement, many of these are self-adhesive, however be sure to inquire whether a bonding agent is needed. There are a multitude of core build-up products on the market, research and choose the product that will best fit in with your needs.
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| Company | Centrix | Centrix | Centrix | Centrix | Centrix |
| Item | Encore Self-Cure Composite Core Buildup Material | Connexio 7th Generation Bonding System | Encore AF Advanced Formula Self-Cure Composite Core Build-Up Material | Encore D/C Automix Dual-Cure Core Build-Up Material | RapidCore MiniMix Self-Cure Paste Core Build-Up |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | Encore is a self-cure composite core buildup material that mixes easily and syringes through a NeedleTube™. Available with or without fluoride in | Connexio is a dual-cure, self-etching bonding system that creates a strong, resilient bond quickly and easily. Reinforced with nano-particles, | Encore AF is a smoother, creamier version of the Encore self-cure composite core buildup material. The improved blend of hybrid glass filler syringes | Encore D/C is a dual-cure composite core buildup material in an automix cartridge. Available with fluoride release and in natural and contrast shades. | The first unit-dose, automix core buildup material with fluoride. This self-cure composite resin provides complete depth of cure, without light |
| Quantity | 1 Base (25 g)
1 Catalyst (25 g)
1 Connexio™ Part A (3 mL)
1 Connexio™ Part B (3 mL)
Mixing Pad
NeedleTubes™ Micro Applicators
Spatulas | 1 Part A (3 mL)
1 Part B (3 mL) | 1 Base (25 g)
1 Catalyst (25 g) | 1 Cartridge (25 mL)
10 Dispensing Tips
10 Mixing Nozzles | 310126 / 310127 / 310128 - 12 Cartridge, Mixing Nozzle (0.5 g)
310156 / 310157 / 310158 - 36 Cartridge, Mixing Nozzle (0.5 g) |
| Cure Type | Self Cure | Dual Cure | Self Cure | Dual Cure | Self Cure |
| Compressive Strength | 29,878 psi (206 MPa) | Not Available | 43,221 psi (298 MPa) | 32,249 psi (222.35 MPa) | 36,000 psi (248 MPa) |
| Set Time | 4 - 5 minutes | 10 seconds | 4 - 5 minutes | Chemical Cure - 5 minutes
Light Cure - 20 Seconds | 2 minutes |
| Other Core Component | Flouride | Not Available | Fluoride | Fluoride | Not Available |
| Bonding Agent Needed | Yes | Yes | Yes | Yes | Optional |
| Bond Strength | Not Available | 5,700 psi (39.3 MPa) | Not Available | Not Available | 3,046 psi (21 MPa) |
| Tensile Strength | 6,527 psi (45 MPa) | 3,553 psi (24.5 MPa) | 6,817 psi (47 MPa) | 7,034 psi (48.5 MPa) | Not Available |
| Shades | Natural
White | Not Available | Natural
White | Contrast Blue
Natural | Contrast
Natural
White |
| Dispensing | NeedleTubes Micro Applicator | Bottle | Syringe | Syringe | Syringe |
| Get Info | Inquire | Inquire | Inquire | Inquire | Inquire |