DENTAL STONE (NUH DENTAL STONE)

Dental stones are classified from Type 1 to Type 5 according to the EN ISO 6873 Dental Stone standard.

Type Classification

Type	Definition	Area of Use
Type 1	Low expansion stone	Old, rarely used
Type 2	Model stone	Preliminary working models
Type 3 and TYPE 3(+)	Hard model stone	Working models, orthodontic casts
Type 4 and TYPE 4(+)	High strength, low expansion	CAD/CAM models, precision crown-bridge models
Type 5	Very high strength, high expansion	Implant, denture modelling

About the Product

Nuh Yapı Dental Stones are professional products specially formulated for dental applications with high quality standards. These stones have been developed for use in dental fields such as intraoral modelling, preliminary working models, casting and precision laboratory procedures.

The basic component of our products is high purity calcium sulfate hemihydrate produced in our own factory. This structure provides consistent and excellent flow, controlled setting time, precise expansion values and high detail accuracy. Additives and pigments are included for ease of use, colour differentiation and workability.

Nuh Yapı Dental Stones are not produced for medical purposes with direct human contact such as bone graft substitutes or implant applications, but exclusively for dental modelling and technical use.

Product Properties

Our products are offered in three different classes depending on the intended use: TYPE 2, TYPE 3 and TYPE 4. In general;

• Each type is manufactured according to the values of the international EN ISO 6873 Dental Stone standard.
• The setting time and all technical properties including expansion are consistent for each batch and are controlled by our quality control laboratory.
• All our dental stones are certified according to the MDR regulation, UDI registered and CE marked.

Type 4 and TYPE 4(+) – High Strength Low Expansion Stone

• Property: High surface hardness, high mechanical strength, low expansion, fast setting time
• Use: Precision fixed prosthetics, casting models
• Advantage: Fine detail transfer, stability
• Colour: White, Pink and Salmon

Type 3 and TYPE 3(+) – Hard Model Stone

• Property: Medium mechanical strength
• Use: Orthodontic models, working models
• Advantage: Good surface quality, successful expansion control
• Colour: White and Light Yellow

Type 2 – Model Stone

• Property: Low strength, very low expansion
• Use: Preliminary models, measuring stone casts
• Advantage: Easy to mix, suitable for students, cost-effective
• Colour: White and Light Grey