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NANOZR is a pre-sintered disk for dental CAD/CAM system developed by exploiting nanotechnology and has been backed by clinical research over 10 years.
NANOZR is a promising ceramics suitable for dental restorations required high structural strength because of its higher durability.
Steel balls of 6, 14, 25 and 32 g were dropped from the 600 mm height onto the three kinds of 1 mm thick disks made of alumina, yttria-stabilized zirconia (Y-TZP) and NANOZR.
Alumina was easily broken at 6 g, whereas Y-TZP broke at 25 g. In contrast, NANOZR endured a weight of 32 g.
NANOZR is an intragranular type nanocomposite consisting zirconia matrix and alumina dispersions, which is reinforced with nano crystals. The physical properties of NANOZR are unique. NANOZR has a flexible property than that of conventional dental ceramics.
In addition, extremely high fracture toughness offers the best safety and reliability.
Furthermore, NANOZR has high resistant under hydrothermal conditions. Thus, NANOZR is applicable for various kinds of dental restorations.
NANOZR is a composite of Ceria stabilized Zirconia and Alumina. An intragranular nanostructure is obtained during sintering.
NANOZR is a unique material that combines much higher toughness and higher strength as compared to those of conventional zirconia. Crack length induced by Vickers indentation of NANOZR is quite shorter than that of other conventional ceramics.
Microstructure of NANOZR
NANOZR has a very high resistance to low temperature aging degradation (LTAD) under hydrothermal conditions.
NANOZR indicates no solubility in the oral environment.
NANOZR does not produce metallic allergy and has biological safety.
Optical micrograph around vickers indentation ( Load : 490N )
As NANOZR possesses exclusive unique physical properties, it can apply various regions, such as thinner parts and/or complex shape which are required much higher strength. Panasonic proposes optimum shape design for newly intended application by taking advantage of our analysis and design technologies.
|Trade name||NANOZR milling blank|
|Thickness (mm)||10, 12, 14, 16, 18, 20, 22, 25|
|Indications||ex.) crown, bridge, etc.|
|Properties||Measured Values||Unit||Standard Used|
|Density||5.52||g / cm³||JS R 1634|
|Bending strength||1290||MPa||ISO 6872 (Biaxial)|
|Fracture toughness||8.62||MPam½||ISO 6872 (SEVNB)|
|CTE (25 ° C- 500 ° C)||10.0||10-6K-1||ISO 6872|
|Hardness||11.5||GPa||JS R 1610 (Vickers)|
|Elastic modulus||245||GPa||JS R 1602|
|Thermal conductivity||6.22||W / (mK)||Laser Flash|
|Radioactivity||0.067||Bq / g||ISO 6872|
|Chemical Solubility||0.00||μg / cm²||ISO 6872|
Panasonic is producing CAD/CAM blanks in house under consistent quality management ranging from raw materials to powder molding and pre-sintering, procedure and provides CAD/CAM blanks that customer can use in relief.
Dental prosthesis realizing high-precision fitting can be obtained because our CAD/CAM blanks are produced by using cold isocratic press (CIP), which makes possible to get isotropic shrinkage during full sintering procedure.
Panasonic Healthcare Co., Ltd. is certified in accordance with EN ISO 13485: 2003 / AC: 2009 and the Directive 93/42/EEC on Medical Devices (MDD).
NANOZR Catalog (English)
NANOZR Catalog (German)
NANOZR User manual (English)
NANOZR User manual (German)
NANOZR Material safety data sheet
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