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. | DenMat | DenMat | DenMat | Shofu |
| Item | GC Fuji IX GP Packable Posterior Restorative | Core Paste Jars Core Build-Up and Posterior Restorative Material | Core Paste Syringeable Core Build-Up and Posterior Restorative Material | Core Paste XP Core Build-Up and Posterior Restorative Material | Core Shade GlasIonomer Core Build-Up Base Cement |
| Price | Inquire | Inquire | Inquire | Inquire | Inquire |
| Description | GC Fuji IX GP is the easy-to-use, handle and place fluoride releasing alternative to expensive compomers and composites and in many cases, amalgam. It | Core Paste is a creamy, radiopaque, composite resin system developed specifically for high-strength, reliable, core build-ups under fixed prosthesis | Core Paste is a creamy, radiopaque, composite resin system developed specifically for high-strength, reliable, core build-ups under fixed prosthesis | Core Paste XP Syringe has the same strength and excellent handling characteristics of original Core Paste, with over 29 years of clinical success. The | CoreShade GlasIonomer is formulated to provide a dependable, easily detectable, metal-free core build-up. |
| Quantity | 439153 - 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), GC Fuji Capsule Applier
439901 - 1 Cavity Conditioner (5.7 mL), 1 GC Fuji Coat LC (5.2 mL), 1 Liquid (8 g), 1 Powder (15 g) (A2) | 1 Core Paste A Initiator (25g), 1 Core Paste B (25g) | 1 cartridge (50g) | 4 syringes (10g/syringe) | 1 Gray Powder (25 g)
1 Liquid (10 mL)
Dispenser
Mixing Pad |
| Cure Type | Not Available | Dual Cure | Dual Cure & Self Cure | Dual Cure | Not Available |
| Compressive Strength | 31,908 psi (220 MPa) | 220 | 220 | 220 | 21,320 psi (147 MPa) |
| Set Time | 2 minutes 20 seconds | 3 to 4 minutes; 1.5 to 2 minutes for Quick-Cure | Self-Cure White & White w/ Fluoride will cure in 1 to 2 minutes
Dual-Cure Enamel will self-cure in 2.5 to 4.5 minutes (can use a curing light to hasten polmerization) | Inquire | Not Available |
| Material Type | Packable Glass Ionomer | Resin | Not Available | Resin | Glass Ionomer |
| Other Core Component | Not Available | Option of Fluoride | Option of Fluoride | Option of Fluoride | Not Available |
| Bonding Agent Needed | Yes | Yes | Yes | Yes | Not Available |
| Bond Strength | Bovine Dentin - 638 psi (4.4 MPa)
Bovine Enamel - 856 psi (5.9 MPa) | Not Available | Not Available | Not Available | Not Available |
| Tensile Strength | 3,191 psi (22 MPa) | Not Available | Not Available | Not Available | Not Available |
| Shades | A2
A3
A3.5
B2
B3 | White, White w/ Fluoride, White Quick-Cure with Fluoride, Enamel, Email Quick-cure, Enamel with Fluoride, Blue | White w/ Fluoride (Self-Cure), White (Self-Cure), Enamel (Dual Cure) | Enamel, Enamel w/ Fluoride, White, White w/ Fluoride | Gray |
| Dispensing | Capsule | Centrix Gun | Dispensing Gun | Auto-mixing syringe delivery-- No dispensing gun required | Bottle |
| Get Info | Inquire | Not Available | Not Available | Not Available | Not Available |