Comparison Table for Gypsum Dental Material
| Stone Type | Manufacturer | PSI | Expansion | Water to Powder Ratio | Working Time | Setting Time | Other Features |
|---|---|---|---|---|---|---|---|
| Denstone® Model Stone | Kulzer | N/A | N/A | N/A | N/A | N/A | Formulated for full or partial dentures |
| Labstone® All-Purpose | Kulzer | N/A | N/A | N/A | N/A | N/A | Blended for all-around lab use |
| Snap-Stone™ | Whip-Mix Corporation | 14,000 psi | 0.15% | 23/100 | 60-90 sec | N/A | Compatible with all impression materials |
| Die-Keen® Die Stone | Kulzer | 18,000 psi | N/A | 21/100 | N/A | N/A | Forms glassy smooth, chip-resistant surface |
| Labstone | Garreco Inc | 8,500 psi | 0.12% | 30/100 | N/A | N/A | Creamy mix with high compressive strength |
| Buffstone | N/A | 4,000 psi | 0.15% | 30 ml/100 g | 6-8 min | 15 min | Type 3 gypsum for general purpose lab uses |
| Silky-Rock | Whip-Mix Corporation | 13,000 psi | 0.09% | 23/100 | 3-6 min | N/A | Low setting expansion guarantees accuracy |
| Coecal™ Type III | GC America Inc | N/A | N/A | N/A | N/A | N/A | Hard, quick setting, accurate lab stone |
| Hydrock™ Model Stone | Kerr Restoratives | N/A | N/A | N/A | N/A | N/A | Used primarily for full or partial denture models |
| Patterson® Die Stone | Patterson Dental Supply | N/A | N/A | N/A | N/A | N/A | Suitable for all impression materials |
Gypsum products are one of the most broadly utilized dental materials for fabrication of dental casts and dies which are used as for further construction of indirect dental restorations.
Top 10 Gypsums & Bonded Investments Miscellaneous in Dentistry
1. Denstone® Model Stone – Kulzer
Denstone® Model Stone is formulated for processing full or partial acrylic dentures and counter models.
- Formulated to produce extremely smooth, strong casts
- Smoothness and accuracy for quality assured models
- Strength and toughness for easy model trimming
Top 10 Denture Repair Material in Dentistry
2. Labstone® All-Purpose Model Stone – Kulzer
Labstone® All-Purpose Model Stone is blended for all-around laboratory use.
- Preferred for flasking acrylic dentures, articulating and master models
- Easy model trimming
3. Snap-Stone™ Fast-Setting Stone, Pink
Snap-Stone™ is an exceptionally fast setting stone with an equally high compressive strength. It is compatible with all impression materials.
- 14,000 psi
- Working time: 60-90 seconds
- Expansion: 0.15%
- Water to powder ratio: 23/100
4. Die-Keen® Die Stone – Kulzer
Die-Keen® Die Stone is used to deliver high strength and optimum expansion for dies, crowns and bridgework.
- Flows easily under vibration as ultrafine, mixed powder
- Stacks well without slumping
- Forms glassy smooth, chip-resistant surface; no hardeners or additives needed
- Compatible with all impression materials
- 18,000 psi when dry
- Liquid to powder ratio 21:100
5. Labstone – Garreco Inc
Labstone is a gypsum material with indications that include use in models and flasking, the production of full or partial dentures and in basing crown and bridge models. The formula is a creamy mix with high compressive strength and superior outward hardness.
- Water to powder ratio: 30/100
- Expansion: 0.12%
- Psi: 8,500
6. Buffstone Type III Gypsum, 33 lb Carton
Buffstone is a Type 3 gypsum for all general purpose lab uses.
- Features a long working time: 6-8 minutes
- Water to powder ratio: 30 ml/100 g
- Setting time: 15 minutes
- Setting expansion: 0.15%
- Compressive strength: 4,000 psi after one hour and 8,000 psi dry
7. Silky-Rock Low Expansion Die Stone
Silky-Rock has a remarkably low setting expansion that guarantees accuracy of dies and master casts. It is known for its easy handling, creamy consistency and silky-smooth surfaces.
- Works well with all types of impression material
- Working time: 3-6 minutes
- Expansion: 0.09%
- 13,000 psi
- Water to powder ratio: 23:100
8. Coecal™ Type III Dental Stone – GC America Inc
COECAL™ Type III Dental Stone is a hard, quick setting, accurate laboratory stone used for study models, working models and flasking procedures.
- Minimum processing change
- Ideally suited for use with either FUJIROCK® or SUPER-CAL PLUS™
- Available in two colors: white or buff
9. Hydrock™ Model Stone – 33 lb – Kerr Restoratives
Hydrock™ Model Stone from Kerrlab is used primarily for full or partial denture models. It can also be used for study models.
10. Patterson® Die Stone – Blue
Patterson® Die Stone is used for construction of working models and dies for implant cases, precision attachment cases and all crown and bridge cases.
- Provides smooth mixing and ample setting time
- Suitable for use with all impression materials
- Made in the USA
