FAQ

KATANA™ Zirconia ONE SPEED CROWN allow speed zirconia restoration process: 9 minutes sintering when treating the patient on a single visit and using Dentsply Sirona’s CEREC system. Kuraray Noritake Dental’s zirconia and multi-layered technologies allows the user to fabricate zirconia restorations with natural shade gradation and translucency mimicking natural teeth.

Here are the main features of this product:

1) 9 minutes sinter for all shades
2) Higher flexural strength: 1023 MPa*
3) Inherits the feature of conventional KATANA™ Zirconia ONE: Esthetic and easy to use.

*When compared with KATANA™ Zirconia ONE CROWN/BRIDGE

KATANA™ Zirconia ONE CROWN/BRIDGE allows for a 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 mult-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; 933 MPa*
2) 18-minutes 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 SPEED CROWN has been optimized for 9 minutes sintering and higher flexural strength: 1023 MPa.

KATANA™ Zirconia ONE SPEED CROWN can sintered as fast as 9 minutes when using Dentsply Sirona’s CEREC SpeedFire furnace.
KATANA™ Zirconia ONE SPEED CROWN has a higher flexural strength that is uniform from the enamel and throughout the body layers (1023 MPa), while the enamel layer of ZirCAD Prime Block is 644 MPa.*1
KATANA™ Zirconia ONE SPEED CROWN has a unique multi-layer technology that results in natural
looking restorations.
KATANA™ Zirconia ONE SPEED CROWN has a higher translucency*2 at 46% compared to compared to
CEREC MTL Zirconia at 42%.

*1 Data source: Kuraray Noritake Dental Inc. According to ISO 6872: 2015.
*2 Data source: Kuraray Noritake Dental Inc. Total light transmittance for restorations with a thickness of less than 6 mm, KATANA™ Zirconia ONE can achieve high translucency after only 9 minutes of high-speed sintering.

KATANA™ Zirconia ONE CROWN/BRIDGE can sintered as fast as 18 minutes when using
Dentsply Sirona’s CEREC SpeedFire furnace.
KATANA™ Zirconia ONE CROWN/BRIDGE has a higher flexural strength (933 MPa) than IPS e.max CAD
(565 MPa), which is a lithium disilicate glass.*1
KATANA™ Zirconia ONE CROWN/BRIDGE has a unique multi-layer technology that results in natural
looking restorations.
KATANA™ Zirconia ONE CROWN/BRIDGE has a higher translucency*2 at 46% compared to compared
to CEREC MTL Zirconia at 42%.

*1 Data source: Kuraray Noritake Dental Inc. According to ISO 6872: 2015.
*2 Data source: Kuraray Noritake Dental Inc. Total light transmittance for restorations with a thickness of less than 6 mm, 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.
KATANA™ Zirconia ONE SPEED CROWN is used for the fabrication of all-ceramic restorations: anterior crowns, posterior crowns, inlay, onlays, and veneers.

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

>12 mm² for anterior and > 14 mm² 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.

32 mm with a sprue.

No

No

The total restoration time for KATANA™ Zirconia ONE SPEED CROWN is now possible within just 1 hour.
5 -10 minutes for intraoral scanning and design
5 minutes*1 for milling
5 minutes for pre-polishing
9 minutes for sintering (dry)
1 minute for post-polishing

*1 In cases using the Super Fast mode in the Primemill milling unit.
* These times are only for reference, and the actual required time may vary depending on the case and shape.

The total restoration time for KATANA™ Zirconia ONE CROWN/BRIDGE is possible to deliver in a single-visit.
5 -10 minutes for intraoral scanning and design
5 minutes*1 for milling
5 minutes for pre-polishing
18 minutes for sintering (dry)
1 minute for post-polishing

*1 In cases using the Super Fast mode in the Primemill milling unit.
*These times are only for reference, and the actual required time may vary depending on the case and shape.

8 minutes for glazing in Dentsply Sirona’s CEREC SpeedFire furnace

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.

Yes. You will need CEREC inLab CAM software version 22.1.1 / inLab CAM 22.2.0 or later is required.

Yes. You will need CEREC inLab CAM software version 22.5.0 or later is required.

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

Scan the QR code with the Primemill by holding the image in front of the camera until the scan is confirmed as successful. If the scan fails, you can manually enter the block information on the touch interface.
The 7-character code, or Enlargement Factor is used to enter manually with MCX/L for material identification.

You may select up to 3 SPEED CROWNS/CROWNS or 1 BRIDGE.

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 other manufacturers’ 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 <10 mins.

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.

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 other manufacturers’ 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.
If necessary, apply CLEARFIL™ Universal Bond Quick 2* prior to the cementation with PANAVIA™ SA Cement Universal to enhance bond strength to tooth structure.
PANAVIA™ V5: Apply PANAVIA™ V5 Tooth Primer* and dry.

*Apply according to Instruction for Use of the each material.”

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 SPEED CROWN is validated for use with the Dentsply Sirona CEREC® system, which includes a digital impression scanner, a design software*1, a manufacturing unit, and a sintering furnace. Please consult with your local CEREC® representative for detailed information on configuration.
Also, KATANA™ Zirconia ONE SPEED CROWN is validated for use with the inLab CAM for the dental lab.*2

*1 Software version CEREC 5.2.10 or later.
*2 Software version inLab CAM 22.5.0 or later.

KATANA™ Zirconia ONE CROWN/BRIDGE 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.
Also, KATANA™ Zirconia ONE CROWN/BRIDGE is validated for use with the inLab CAM for the dental lab.*2

*1. Software version 5.2.4 or later.
*2. Software version inLab CAM 22.1.1 / inLab CAM 22.2.0 or later.

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.

Sintering of zirconia is a thermal process in which loosely bound particles are densified into Zirconia crystal under the influence of thermal energy.
Kuraray Noritake Dental Inc. has developed new zirconia powder that can reach a highly activated state with little energy. It accelerates the sintering process, thereby achieving an ultra short sintering time of 9 minutes.

In general, reducing the sintering time is disadvantageous for translucency, but KATANA™ Zirconia ONE SPEED CROWN maintains the high translucency of KATANA™ Zirconia ONE (CROWN) by making the size of the crystals uniform, which decreases the generation of small crystals which is disadvantageous to translucency.

In general, large crystals are disadvantageous for strength. Uniformly sized crystals of KATANA™ Zirconia ONE SPEED CROWN which decrease the the large crystals can achieve higher strength.

Please refer to your furnace service manual for calibration and temperature tests.
You may also consult with your local CEREC® representative for information about DS Core Care which provides annual maintenance of your CEREC components, including calibration of your SPEEDFIRE oven.