Key Points of Setting❷ Washing with Phosphoric Acid after Trial❶ Alumina Sandblasting
Blast with 50 µm alumina particles at a pressureof 0.2 - 0.3 MPa.

After trial, always wash the inside of the crown withphosphoric acid, then rinse and dry to remove saliva andblood proteins.

Hybrid Ceramics Disc for CAD/CAM Use❸ Surface treatment❹ Tooth Surface Treatment

Color Type : A2，A3，A3.5

Apply surface treatment agent containing
silane coupling for ceramics inside of thecrown, and then dry,

Wash tooth and perform surface treatment in accordance with the appropriate instructions for the cement
to be used.

❺ Cement Application❻ Pressing Down and Light-Curing

Apply resin cement for CAD/CAM hybridceramics block inside the crown in accordancewith the proper operational instructions.

Press it down to fit and light-cure in accordance withnormal operational instructions. Then, remove surplus
cement and light-cure sufficiently as a final curing.

LineupHybrid Ceramics Disc for CAD/CAM Use

ShadeSize (mm)A2
A3

Φ98 × t14

A3.5

Related Products
Bonding material for dental metal, dental ceramics and composite resin

Light-cured Indirect Composite Resin

Multi Primer LIQUID (7mL)
Multi Primer PASTE (2mL)
Multi Primer REPAIR LIQUID ONE (6mL)
Hybrid Composite Resin for Crowns and Bridges

The actual color of the product, model and package may differ from the photographs due to printing ink and shooting conditions.

Manufacturer

1090-3 Otani, Kamibun, Kagami-cho,
Konan-shi, Kochi, 781-5451 Japan

https://www.yamakin-global.com

Head Office: 3-7 Sanadayama-cho Tennoji-ku Osaka 543-0015, Japan
Branch Office: Tokyo, Osaka, Sendai, Nagoya, Fukuoka, JAPAN
Factory and R&D: Kochi, JAPAN
P: +81-887-55-0281 F: +81-887-55-0053
E: contact@yamakin-gold.co.jp

INTERNATIONAL20200228

Hybrid Ceramics Disc for CAD/CAM Use

Excellent Discoloring Resistance andStaining ResistanceHigh Abrasion Resistance

Evaluation of Staining Resistance by Coffee

Abrasion Test of Opposing Tooth

Test MethodImmersion liquid: 5% instant coffee in aqueous solution (at 37 degrees Celsius)

50

Color difference (⊿E)

YAMAKIN has improved our unique materials technology even further
and developed an even better CAD/CAM Disc.
At YAMAKIN, we have been pushing forward to evolve our in-house-developedCeramics Cluster Filler even further, to expand its range with new functions. Asa result, we have completed KZR-CAD HR Disc 2 which has outstanding

40

Bovine (Enamel)
20100Outstanding Strength and Durability

350

Submicron Filler

300

Immersing Time (h )Flexural Strength (MPa)(SiO2-ZrO2-Al2O3 : 200~600 nm)

Spherical Nano-Filler(SiO2: 20 nm)
Fluoride Sustained Release Filler(700 nm)◀ Image of KZR-CAD HR 2 Fillers
Polishability and abrasion
resistance are improvedby homogenization.

After 5,000 Times of Thermal
Cycle Testing

250
200
150
100500KZR−CAD HR 2Luna-Wing*1(Test method: double-axis flexural test in accordance with ISO 6872;
applicable pitch circle diameter: 12 mm)(*1: Indirect Composite Resin)

KZR−CAD HR 2

KZR-CAD HR 2 has maintained high flexural strength of over 250 MPa andit has the excellent durability even after thermal cycle testing (5,000 times
at 4-60 °C, equivalent to about 1 year and a half *2) ).
*2)

150
100
500

KZR−CADHR 2

430

KZR-CAD HR 2 also exhibits fluoride
sustained release at the same time,
while maintaining its outstanding
strength and durability.

0Luna-Wing*1

BovineEnamel

Porcelain

Zirconia

KZR-CAD HR 2 is less likely to be worn away. At the same time, it is lesslikely to damage the opposing tooth, and the problems caused by losing
occlusion balance are rendered less likely to occur by the way theproduct keeps a moderate level of abrasiveness.

51<Testing Condition>
Load Weight: Approx.2 kg
Abrasion Distance: 4 mm
Speed: 1.7 Hz

Both the enamelof antagonist andthe productmaterial are lesslikely to be wornaway.

62

Bovine Enamel(mirror polishing)(*Test Method: In-House Test) (*1: Indirect Composite Resin)

50100150200

Elapsed Days(*Test Method: In-House Test)

KZR-CAD HR 2 continuously releases fluoride ion securely, and stably
maintains its strength by optimization of the surface-treatment conditions offluoride ion release filler.

Assuming 10 thermal changes a day.

Properties (reference value)
Flexural Strength (MPa)The particle density of the ceramics cluster filler used for KZR-CAD HR 2 iscontrolled to be 1 to 20 µm and have almost the same density as the matrix
area shown in the picture on the right. As a result, the surface is sohomogenized that the filler cannot be recognized even under 1,000magnification. While it maintains outstanding strength and durability, it also
succeeds in dramatically improving polishability and abrasion resistance.

48200Abrasion
Depth

Test Piece(mirrorpolishing)

Test Piece

Fluoride Sustained Release

More than 250 MPa achieved
even after thermal cycle testing!
Before Thermal Cycle Testing

20 µm

24250

Long-term Sustained Release of Fluoride

Cumulative Fluoride Ion Release (µg/cm2)

Flexural Strength(1-20 µm)

20 µm

48-hourImmersion

KZR−CAD HR 2

Since KZR-CAD HR 2 is polymerized to a high degree by heat processing, its
excellent staining resistance is confirmed; it is hard to discolor in the long term
and long-term endurance of aesthetic quality can be expected. This has been
confirmed by studies comparing extracted teeth of bovine (Enamel and Dentine).

Ceramics Cluster Filler

Homogenization isachieved by control offiller density.

Excellence in Staining
Resistance and lessdiscoloring causedby pigment.

(*Test Method: In-House Test)

Methacrylic Aid Monomer

Conventional Product48-hourImmersion

0and polishability and fluoride sustained release.

SEM Image (×1,000)

Bovine (Dentine)30

strength and durability. At the same time, it also has excellent processability

The Evolution of Ceramics Cluster Filler

Bovine (Dentine)
Bovine (Enamel)
KZR−CAD HR 2

Antagonist (Bovine Enamel)

Abrasion Depth after 50,000 (µm)

60

In Water at37°C

Three Point
Flexural Test *1)

Double-Axis
Flexural Test *2)

235

290

Vickers Hardness(HV0.2)

X-Ray Imaging
Characteristic/Fluorescence

Fluoride Sustained
Release

85

Yes

Yes

The figures given are for reference purposes and are not specifications.
*1 Three-point bending test: ISO10477*2 Two-point bending test: ISO6872 (Diameter of supporting disc: 12 mm)