FAQ

KATANA™ Zirconia ONE allows milling up to 3-unit bridges when treating the patient on a single visit and using Dentsply Sirona’s CEREC system. Kuraray Noritake Dental’s zirconia and multi-layer technologies allow the user to fabricate zirconia restorations with natural shade gradation and translucency mimicking natural teeth.

Here are the main features of this product.
1) Flexural strength; 933MPa*
2) 18-minute Sinter for all shades
3) Extended bur life approx. 200% compared to conventional product
4) Streamlining inventory management

*Published data: using “CROWN” block

The product consists of four different colored zirconia. They are arranged in the order of 35% (Body Layer), 15%
(Transition Layer 1), 15% (Transition Layer 2), and 35% (Enamel Layer). Please refer to the product brochure for details.

KATANA™ Zirconia ONE has been optimized for cutting efficiency when manufacturing the prosthetics by
adjusting the sintering conditions, when compared with its predecessor, KATANA™ Zirconia Block STML.
As a result, bur life is extended.

The new KATANA™ Zirconia ONE, for single unit restorations, streamlines inventory management by integrating
multiple block sizes into one type under the name CROWN. BRIDGE is available for fabricating bridge restorations.

With the change in size, it enables the Super Fast milling mode provided by CEREC Primemill making it is possible to mill a CROWN in as fast as 5 minutes.

Preparation guidelines for minimal thickness of a full coverage posterior crown is reduced to 0.8mm, while maintaining its mechanical strength.

Previously, a glaze finish was recommended, but now you can choose between finishing techniques: glaze finish, pre-sinter polish, and post-sinter polish.

KATANA™ Zirconia ONE has been optimized to achieve higher efficiency while maintaining characteristics such as natural gradation, speed sintering compatibility, mechanical strength, and is available in a wide selection of shades (14), as our orignal KATANA™ Zirconia BLOCKS.

KATANA™ Zirconia ONE has a higher flexural strength (933 MPa) than IPS e.max CAD (565 MPa), which is a lithium disilicate glass*.

KATANA™ Zirconia ONE’s unique pigment technology multi-layered structure, so it is easier to fabricate a natural looking restoration.
*Data source: Kuraray Noritake Dental Inc. According to ISO 6872: 2015.

KATANA™ Zirconia ONE has a higher translucency* at 46% compared to CEREC MTL Zirconia at 42%.

*Total light transmittance for restorations with a thickness of less than 6mm, KATANA™ Zirconia ONE can achieve high translucency after only 18 minutes of high-speed sintering.

KATANA™ Zirconia ONE is used for the fabrication of all-ceramic restorations: anterior crowns, posterior crowns, inlay, onlays, veneers, bridges (“BRIDGE” block only), and frameworks.

Kuraray Noritake Dental recommends the following material thickness based on the following indications:
Anterior crown 0.8mm; Posterior crown 0.8mm; Inlay 1.0mm; Onlay 1.0mm including functional cusp; veneer 0.4mm.
For the bridge block: connectors should be >12mm² for anteriors and > 14mm² for posteriors.
Chamfer and shoulder margins are recommended.

>12mm² for anterior and > 14mm² for posterior bridges. Please refer to the product brochure for details.

14 shades. Please refer to the product catalog for details.

For CROWN, it is up to 13 mm and for BRIDGE it is up to 14 mm. After sintering, the prosthesis will shrink approximately 80% of its original size (referred in the product brochure).

32 mm with a sprue.

No

No.

5 -10 minutes for intraoral scanning and design
5 minutes* for milling
18 minutes for sintering (dry)
5 minutes for polishing or 10 minutes for glazing

*In cases using the Super Fast mode in the Primemill milling unit.

Pre-sintered zirconia is milled with carbide burs and then fully sintered afterwards.

KATANA™ Zirconia ONE can be either wet or dry milled.

We recommend dry milling. It is possible to mill this product using wet milling, but wet milling may achieve a lower level of translucency than expected if cooling water is contaminated by silica-based glass ceramics (lithium disilicate glass, etc). It is possible to mill this product using wet milling with clean cooling water but tank cleaning and filter changing are necessary before beginning the milling process. Additionally, when wet milling, additional time is required to complete the sintering process, as a drying step is added into the process.

If using KATANA™ Zirconia ONE with other materials such as glass and resin blocks in the same machine, it is necessary to wash the milling chamber and filter, then replace the cooling liquid. Insufficient cleaning of the chamber or filter will result in restorations with inaccurate shade, lower translucency, or a chalky appearance.

We recommend using three separate tanks:

1. a dedicated glass ceramic cooling-water tank, 2. a water tank for flushing in between restorations, and 3. a dedicated zirconia cooling-water tank.

If wet milling is used, a drying process for 10 minutes at 200 degrees is necessary.

It can be used with the CEREC software 5.2.4 / inLab 22.1.1 / inLab CAM 22.2.0. or later versions.

Yes. General zirconia furnaces can be programmed to sinter KATANA™ Zirconia ONE. Please refer to the product Instruction for Use for details.

The barcode is called the “data matrix code”, which is especially compatible with the Primemill barcode scanner.
The 7-character code can be used to enter manually with MCX/L for material identification.

You may select up to 3 CROWNS or 1 BRIDGE.

Yes. It is possible to use furnaces which can follow the sintering program of KATANA™ Zirconia ONE.
Please refer to the products Instructions for Use for details.

Yes, it can be layered.

Once the restoration has completely cooled, you may conduct a try-in. If necessary, make any occlusal adjustments. Application of glaze is optional, but an additional glaze cycle in the furnace will be necessary with this option.

If necessary, make any occlusal adjustment by using a diamond bur or silicone points containing diamond particles. Use a copious spray of water or work on the prosthesis while it is wet. Be careful not to apply undue force, since this may cause a fracture, breakage or micro-cracks from local spot heating. Polish the restoration to smooth surfaces that have contact with the opposing dentition.

A thin, uniform coat of glaze may improve your restoration’s aesthetics. Apply sandblasting with gentle pressure (2 bar with 50 micron alumina) to create surface texture. Clean the restoration. Secure the restoration on a peg with refractory paste. Apply CZR FC Paste Stain and Glaze. Choose the Glaze cycle on the SpeedFire. You have up to 2 glaze cycles programmed in the SpeedFire, if needed.

CERABIEN™ ZR FC Paste Stain.

It is possible to use competitors’ universal low-fusing spray glaze. Please follow the manufacturer’s Instructions for Use of the glaze material.

The SpeedFire furnace glaze time is approximately 8:40. Other furnace programs vary, but are generally <10mins.

In cases with pre-sinter polish (material is in its green state), bur marks left by the manufacturing unit can be smoothed prior to sintering. It is recommended to use silicone-free polishers. Polishing should be administered with light pressure and low RPMs.

In cases of post-sinter polishing, upon making occlusal adjustments, polish the restoration with silicone points containing diamond particles, using three levels of polishing, starting from coarse to medium to fine. After that, with a zirconia polishing paste material (Pearl Surface Z, etc.), brush or buff the restoration.

It is recommended to use silicone-free polishers when pre-sinter polishing.

When polishing after sintering the restoration, it is recommended to use diamond impregnated polishers in order from coarse to medium to fine, or a polishing paste material containing diamond particles, such as Pearl Surface Z (Kuraray Noritake Dental Inc) for post-sinter polishing.

Over-polishing may result in a ‘pearly’ appearance.

It is possible to do this with CERABIEN™ ZR FC Paste Stain. There are up to 2 glaze cycles programmed in the SpeedFire, if needed.

It is recommended to use products designed for glazing zirconia. However, it is possible to use competitors’ universal glaze. Please follow the manufacturer’s Instructions for Use of the glaze material.

No. Kuraray Noritake’s unique pigment technology for zirconia and multi-layering lets the user fabricate zirconia restorations with natural color gradation and translucency close to those of natural teeth. As a result, you do not need to add additional steps to your workflow.

The product itself does not have fluorescence, but it is possible to add fluorescence to the restoration with CERABIEN™ ZR FC Paste Stain, specifically Fluoro from FC paste Stain.

An MDP cement system is recommended for use with this product. PANAVIA™ SA Cement Universal, PANAVIA™ V5, PANAVIA™ Veneer LC meet this criteria.
It is also possible to use various cements recommended for bonding with zirconia. Please follow the cement manufacturer’s Instructions for Use.

If the prosthetic becomes contaminated during try-in, etc., it can be cleaned using the following method: You can clean by rubbing KATANA™ Cleaner on both surfaces for 10 seconds each, washing with water and drying.

PANAVIA™ SA Cement Universal: No treatment necessary. We recommend the use of CLEARFIL™ Universal Bond Quick to enhance bond strength to tooth structure.
PANAVIA™ V5: Apply PANAVIA™ V5 Tooth Primer and dry.

PANAVIA™ V5: After sandblasting and cleaning, apply CLEARFIL™ Ceramic Primer Plus, then dry.
PANAVIA™ SA Cement Universal: After sandblasting and cleaning, directly use the cementing technique as indicated in the Instructions for Use.

Yes.

KATANA™ Zirconia ONE is validated for use with the Dentsply Sirona CEREC® system, which includes a digital impression scanner, a design software*, a manufacturing unit, and a sintering furnace. Please consult with your local CEREC® representative for detailed information on configuration.

*Software version 5.2.4 and above.

This product can be fabricated with a wet or dry manufacturing unit; however, it is recommended for dry milling.

Bur life depends on varying prosthesis design as well as hardware maintenance. KATANA™ Zirconia ONE has been optimized to extend bur life up to 200%*
* Compared to conventional product, according to the verification of the CAD/CAM equipment’s manufacturer.