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 | GC America Inc. | GC America Inc. | GC America Inc. | GC America Inc. | GC America Inc. |
| Item | GC Fuji IX GP FAST Packable Posterior Restorative | GC Fuji II LC Glass Ionomer Restorative | GC Fuji IX GP EXTRA Packable Glass Ionomer | Gradia Core Composite for Core Build-Up for Post Cementation | Miracle Mix Metal-Reinforced Crown and Core Build-Up |
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| Description | GC Fuji IX GP FAST is the fast setting version of GC Fuji IX GP, a strong, wear-resistant multipurpose glass ionomer restorative. This product | GC Fuji II LC has smaller glass particles which allow greater density and assures a smoother, glossier, more attractive finish. The harder material | While maintaining the ample working time of Fuji IX GP FAST (1 1/4 minutes), Fuji IX GP EXTRA allows final finishing in only 2 1/2 minutes from | GRADIA CORE has a one-step, self-etching bonding system and easy mixing system, which results in a homogeneous mix of the two paste components. The | Miracle Mix offers the proven formula of glass ionomer cement with 100% fine, silver alloy powder for lasting core build-ups, block-outs and repair. |
| Quantity | 1 Cavity Conditioner (5.7 mL)
1 GC Fuji Coat LC (5.2 mL)
50 Capsules (10 Each of A2, A3, A3.5, B2, B3)
Capsule Applier | 436400 - 25 Powder (0.33 g) / Liquid (0.085 mL) Capsules (5 Each of A1, A2, A3, B2, C2)
436700 - 25 Powder (0.33 g) / Liquid (0.085 mL) Capsules (5 Each of A3.5, A4, B3, B4, C4) | 1 Cavity Conditioner (5.2 mL)
1 Fuji COAT LC (5.7 mL)
50 Capsules (10 Each of A2, A3, A3.5, B1, B3)
Capsule Applier | 1 Cartridge (10 mL)
20 Intra-Oral Nozzles
20 Mixing Tips
Dispensing Dish
Micro Tip Applicator
Micro Tip Holder
Self-Etching Bond Liquid A
Self-Etching Bond Liquid B | 000124 - 50 Capsules
000239 - 1 Alloy Powder (17 g), 1 Liquid (10 g), 1 Powder (15 g) |
| Cure Type | Self Cure | Light Cure | Self Cure | Dual Cure | Self Cure |
| Compressive Strength | 38,870 psi (268 MPa) | Not Available | Not Available | 39,595 psi (273 MPa) | Not Available |
| Set Time | 2 minutes | 20 seconds | 2 minutes | 10 seconds | 000124 - 5 minutes
000239 - 5 - 5.5 minutes |
| Material Type | Packable Glass Ionomer | Glass Ionomer | Packable Glass Ionomer | Composite | Silver Alloy Glass Ionomer |
| Bonding Agent Needed | Yes | Not Available | Yes | Yes | Not Available |
| Bond Strength | Bovine Dentin - 841 psi (5.8 MPa)
Bovine Enamel - 957 psi (6.6 MPa) | Not Available | Not Available | Dentin - 3,147 psi (21.7 MPa)
Enamel - 3,133 (21.6 MPa) | Not Available |
| Tensile Strength | 3,336 psi (23 MPa) | Not Available | Not Available | Not Available | Not Available |
| Shades | A2
A3
A3.5
B2
B3 | A1
A2
A3
A3.5
A4
B2
B3
B4
C2
C4 | A2
A3
A3.5
B1
B3 | Not Available | Not Available |
| Dispensing | Capsule | Bottle | Capsule | Dispensing Gun | Bottle
Capsule |
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