Dental Lab material PMMA Blank Multilayer pmma disc

This is a high-performance material specially designed and developed for dental laboratories. It uses polymethyl methacrylate (PMMA) as the main component and adopts a multi-layer structure design. It is designed to meet the needs of various dental restorations and provide dental professionals with convenient, efficient and high-quality material options.
2. Specifications
Size specifications:
Diameter: There are many options for diameter, such as 98mm, 71mm, 95mm, etc., which can adapt to the processing platforms of different dental CAD/CAM equipment to meet the diverse production scale needs.
Thickness range: The thickness usually covers different specifications such as 10mm-25mm. Dental technicians can flexibly select discs of corresponding thickness according to the specific type of restoration to be made (such as crowns, bridges, etc.) and design requirements.
Physical parameters:
Density: Between 1.17-1.20 g/cm³. This density range makes it have good stability during the processing process. It will not be too heavy to affect the operation of the equipment, and it can ensure the texture of the restoration after molding and the stability in actual use.
Hardness: The hardness value is approximately between 80 and 100 Shore D, which has sufficient hardness to maintain the shape of the restoration. At the same time, it can be smoothly cut under the action of the tool during CAD/CAM milling, showing good machinability.
Transparency: It has high transparency, and the transmittance can reach more than 85% - 90%. This feature makes the restoration produced closer to natural teeth in appearance, and can better simulate the optical properties of natural teeth and improve the aesthetics after restoration.
3. Product characteristics
Advantages of multi-layer structure:
Material layering characteristics: The multi-layer structure design is adopted, and the PMMA formula or added ingredients of each layer are slightly different. For example, the surface layer may focus more on wear resistance and aesthetic performance, the middle layer focuses on strength and toughness, and the bottom layer is convenient for bonding with the processing platform or subsequent processing. This layered structure optimizes the performance of the material in different aspects, and the overall performance far exceeds the PMMA material of a single structure.
Synergistic performance improvement: The multi-layer structure can effectively improve the material's anti-fracture performance. Compared with traditional single-layer PMMA materials, its flexural strength can be increased by about 20% - 30%, and it is less likely to break when subjected to external forces such as bite force.
Good cutting performance: During the milling process, there will be no adhesion of the tool, and the cutting debris is small and uniform, which is easy to clean, and can achieve high-precision and high-efficiency processing. Complex-shaped restorations can be easily produced, such as crowns with fine anatomical morphology, multi-unit bridges, etc., with a minimum processing accuracy of ±0.02mm, meeting the strict requirements of dental restorations for precision.
Excellent aesthetic characteristics:
Rich and realistic colors: A variety of color options are available, covering the common natural tooth color series, such as VITA classic colors, ranging from lighter bleached white to yellowish natural tooth colors, and colors can be customized according to customer special needs. These colors can accurately match the different tooth colors of patients, so that the temporary or permanent restorations produced can be integrated with the surrounding teeth in the mouth, achieving a high degree of aesthetic effect.
High surface finish: After a special surface treatment process, the surface of the processed restoration is as smooth as a mirror, and the roughness can be controlled below Ra0.8μm. It is not only comfortable to touch, but also not easy to absorb food residues and bacteria, which is conducive to oral hygiene maintenance, and also further improves the beauty and quality of the restoration.
4. Scope of application
Temporary restoration production: widely used in the production of temporary crowns, temporary bridges and other temporary restorations. While patients are waiting for the production of permanent restorations, they can quickly provide a transitional solution that is both functional and aesthetic, helping patients to restore normal chewing and speaking functions while maintaining a good oral appearance.
Permanent restoration assistance: It can also be used as an important blank for the production of permanent restorations, especially in some complex restoration cases, and used together with other materials (such as porcelain materials, etc.), giving full play to its good basic modeling and aesthetic characteristics, improving the comprehensive performance of the entire restoration, and creating high-quality permanent tooth restoration solutions for patients.

5. Quality Assurance and Certification
Raw Material Quality: High-quality PMMA raw materials are used. These raw materials are all from a strict quality control system and have passed ISO 9001 quality management system certification, ISO 13485 medical device quality management system certification and other authoritative certifications, which ensure the quality foundation of the product from the source.
Product Testing and Certification: The product itself has undergone a strict quality inspection process, meets a number of international and domestic dental material standards, and has obtained the EU CE certification.
6. Packaging and Storage
Packaging form: Usually an independent sealed package is used. Each multi-layer PMMA disc is encapsulated in a sterile, moisture-proof, and anti-static plastic package to effectively prevent the influence of external environmental factors (such as dust, moisture, static electricity, etc.) on the material.
Storage requirements: When storing the product, it is recommended to place it in a cool, dry, and ventilated environment, avoid direct sunlight and high temperature and high humidity environment. The suitable storage temperature is generally between 10℃ - 30℃, which is convenient for dental laboratories to carry out reasonable inventory management according to actual needs.

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