Hybrid Ceramics Block for CAD/CAM Use Shades: A2, A3, A3.5

Transcription

1 : Developed from Ceramics Cluster Filler, YAMAKIN s Unique Material Shades: A2, A3, A3.5

2 Outstanding Strength and Durability Evaluation of Biological Safety Flexural Strength Flexural Strength (MPa) Approx. 2 MPa achieved even after thermal cycle testing! Before Thermal Cycle Testing After 5, Times of Thermal Cycle Testing Cell Test PHK 16 Cell (Test method: double-axis flexural test in accordance with ISO 6872; applicable pitch circle diameter: 12mm) (*1-3: Indirect Composite Resin) KZR-CAD HR exhibits outstanding strength and impact-resistance characteristics. With high flexural strength of over 2 MPa maintained even after thermal cycle testing (5, times at 4-6 C), we have confirmed that the product displays exceptional durability. High Abrasion Resistance Toothbrush Abrasion Test Surface Roughness Ra (µm) KZR CAD HR TWiNY* 1 TWiNY Flow* 2 Luna-Wing* Luna-Wing* 1 TWiNY Flow* 2 KZR CAD HR TWiNY* 3. 1, 2, 3, 4,, The Number of Toothbrush Abrasion (times) (*Test Method: In-House Test) (*1-3: Indirect Composite Resin) Since KZR-CAD HR contains Ceramics Cluster Fillers, it is also characterized by high levels of abrasion resistance. Plaque adhesion is reported to increase rapidly beyond a threshold surface roughness of.2 µm being achieved *1 ; however, even after brushing, times (equivalent to an elapsed period of approx. 7 years *2 ) surface roughness of under.1 µm was observed, indicating a low possibility of plaque adhesion becoming problematic with regard to the material. *1: Bollen, M. et al.: Dental Mater, 13 (4) pp , 1997 *2: Brushing impact estimated as 1 brushstrokes on each tooth twice a day A Fusion of the Core Technology of TWiNY and Pressure and Heat-Polymerization Progressing toward a high-strength, high-durability CAD/CAM-use Block through the successful deployment of new technologies The Ceramics Cluster Filler used in TWiNY, indirect composite resin, offers excellent strength. It s durable and strong against cracks and fractures. This core technology has been used with YAMAKIN s resin products, including Paste and Flowable types. Then, the HR Disc was first made in May, 214. The HR Block was developed with this unique technology. The material is manufactured under strict conditions, whereby it should contain no air impurities. This is the result of a long process of materials development. V79 Cell THP.1 Cell With regard to biological safety, YAMAKIN carries out an extensive joint experimentation program with the Department of Oral and Maxillofacial Surgery, Kochi Medical School, Kochi University. In testing on TWiNY, this program utilized three cell types simulating the oral cavity (PHK16, V79 and THP.1). Testing confirmed that no cellular toxicity is indicated in either PHK16, which is an epithelial cell, or in the fibroblast V79. It has been furthermore confirmed that propagation of the immune cell THP.1 is not inhibited. (Reference: Light and Heat-Cured Indirect Composite Resin Safety Evaluation Report Biological Evaluation of TWiNY Vol. 8 in a Series on Safety Reports) Abrasion Depth after, 2 Antagonist (Bovine Enamel) Test Method In Water at 37 C Abrasion Depth KZR CAD HR Luna-Wing* 1 Bovine Ceramic Zirconia Enamel (*Test Method: In-House Test) (*1: Indirect Composite Resin) <Testing Condition> Load Weight: Approx.2kg Abrasion Distance: 4mm Speed: 1.7Hz Bovine Enamel KZR-CAD HR is not only abrasion-resistant in itself; it also inhibits abrasion of the antagonist. Because of its moderate abrasiveness, it can be expected to help forestall problems caused by imbalances developing in terms of occlusion. Ceramics Cluster Filler Technology Image of Ceramics Cluster Filler Monomer (UDMA,TEGDMA) Ceramics Cluster Filler (1-6 µm) Submicron Filler (-6nm) Spherical Nano-Filler (2 and nm) Since our uniquely developed Ceramics Cluster Filler bonds very securely with the resin matrix, by means of wedge effect it can withstand conditions of extreme mechanical stress. The product therefore achieves outstanding levels of strength and fracture resistance. An Achievement Based on Thorough Fundamental Research Fundamental research on hybrid ceramics has produced a substantial body of academic literature, both in Japan and internationally. With a view forward to the development of applications for a new range of products stemming from the continuation of fundamental research, YAMAKIN is pressing on toward further successful development of KZR-CAD HR for CAD/CAM applications. Achievements of Scholarly Publication Presentation) 1 Development of New Hybrid Resin for Crown (Part1) Fundamental Properties, at The 54th General Session of the Japanese Society for Dental Material ad Devices, October 9 2 Development of New Hybrid Resin for Crown(Part 2) Fatigue Strength, at The 54th General Session of the Japanese Society for Dental Material ad Devices, October 9 3 Development of New Hybrid Resin for Crown (Part4) Relation between the Refractive Indices of Their Components and the Transparency of the Resins, at The 55th General Session of the Japanese Society for Dental Material ad Devices, April 21 4 Development of New Hybrid Indirect Composite Resin for Crown-TWiNY (Part 5) Durability, at The 56th General Session of the Japanese Society for Dental Material and Devices, October 21 5 Effects of Post-Cure Heat Treatment Time on Flexural Strength and Color of a New Hybrid Resin for Crown, at Nippon Academy of Dental Technology Annnual Scientific Meeting 21 6 Development of New Hybrid Resins for Crown (Part 6) : Impact Resistance., at IDMC 211 international Dental Materials Congress 211, May Development of Hybrid Composite Resins for CAD/CAM Processing (Part1): A Detection Method of Air Bubbles Inside the Resin Materials, at The 62nd General Session of the Japanese Society for Dental Material ad Devices, October 213 Submitted Papers) 1 Characteristics of Hybrid Composite Resin, TWiNY: Innovation by Ceramics Cluster Filler, The Journal of the Japan Dental Technologist Association, 5:1-4, New Possibilities and Clinical Application of High-Function Hybrid Resin, The Journal of the Japan Dental Technologist Association, 4-2:16-178,212 3 Highly Esthetic and Toughened Dental Composite Resins, Kobunshi Ronbunshu, 69: , Patent) Composite Resin with Filler, the Filler, and Dental Prosthesis Using the Composite Resin, Japanese Patent Number: 42673

3 Outstanding Strength and Durability X-Ray Imaging Characteristic and Fluorescence Flexural Strength X-Ray Imaging Characteristic Fluorescence Flexural Strength (MPa) (Test method: double-axis flexural test in accordance with ISO 6872; applicable pitch circle diameter: 12mm) (*1-3: Indirect Composite Resin) KZR-CAD HR exhibits outstanding strength and impact-resistance characteristics. With high flexural strength of over 2 MPa maintained even after thermal cycle testing (5, times at 4-6 C), we have confirmed that the product displays exceptional durability. High Abrasion Resistance Toothbrush Abrasion Test Surface Roughness Ra (µm) KZR CAD HR TWiNY* 1 TWiNY Flow* 2 Luna-Wing* Approx. 2 MPa achieved even after thermal cycle testing! Luna-Wing* 1 TWiNY Flow* 2 KZR CAD HR TWiNY* 3 Before Thermal Cycle Testing After 5, Times of Thermal Cycle Testing. 1, 2, 3, 4,, The Number of Toothbrush Abrasion (times) (*Test Method: In-House Test) (*1-3: Indirect Composite Resin) Since KZR-CAD HR contains Ceramics Cluster Fillers, it is also characterized by high levels of abrasion resistance. Plaque adhesion is reported to increase rapidly beyond a threshold surface roughness of.2 µm being achieved *1 ; however, even after brushing, times (equivalent to an elapsed period of approx. 7 years *2 ) surface roughness of under.1 µm was observed, indicating a low possibility of plaque adhesion becoming problematic with regard to the material. *1: Bollen, M. et al.: Dental Mater, 13 (4) pp , 1997 *2: Brushing impact estimated as 1 brushstrokes on each tooth twice a day A Fusion of the Core Technology of TWiNY and Pressure and Heat-Polymerization Progressing toward a high-strength, high-durability CAD/CAM-use Block through the successful deployment of new technologies The Ceramics Cluster Filler used in TWiNY, indirect composite resin, offers excellent strength. It s durable and strong against cracks and fractures. This core technology has been used with YAMAKIN s resin products, including Paste and Flowable types. Then, the HR Disc was first made in May, 214. The HR Block was developed with this unique technology. The material is manufactured under strict conditions, whereby it should contain no air impurities. This is the result of a long process of materials development. Since of the zirconium which forms a component of Ceramics Cluster Filler, KZR-CAD HR exhibits moderate x-ray imaging characteristics. Also, it offers exceptional aesthetics because its fluorescence is designed to closely resemble the natural tooth. Color Expression Thorough Control of Air Bubbles KZR-CAD HR is designed to be more translucent than normal indirect composite resins. It expresses a palette of natural in-depth color tones, giving the dental crown a delicately graded coloration. Evaluation of the Presence of Air Bubbles by X-Ray <No Air Bubbles> <Air Bubbles> KZR-CAD HR s monomer has a very high concentration of Ceramics Cluster Filler. Advanced high-pressure, high-temperature polymerization technology is used to process our resin paste into hybrid ceramics block. This process prevents air bubbles forming. The surface can be visually evaluated for air impurities; the interior is inspected by x-ray. In this way, it is confirmed that the product is manufactured under strict conditions, whereby no air impurities should be present. Abrasion Depth after, 2 Antagonist (Bovine Enamel) Test Method In Water at 37 C Abrasion Depth KZR CAD HR Luna-Wing* 1 Bovine Ceramic Zirconia Enamel (*Test Method: In-House Test) (*1: Indirect Composite Resin) <Testing Condition> Load Weight: Approx.2kg Abrasion Distance: 4mm Speed: 1.7Hz Bovine Enamel KZR-CAD HR is not only abrasion-resistant in itself; it also inhibits abrasion of the antagonist. Because of its moderate abrasiveness, it can be expected to help forestall problems caused by imbalances developing in terms of occlusion. Ceramics Cluster Filler Technology Image of Ceramics Cluster Filler Monomer (UDMA,TEGDMA) Ceramics Cluster Filler (1-6 µm) Submicron Filler (-6nm) Spherical Nano-Filler (2 and nm) Since our uniquely developed Ceramics Cluster Filler bonds very securely with the resin matrix, by means of wedge effect it can withstand conditions of extreme mechanical stress. The product therefore achieves outstanding levels of strength and fracture resistance. SEM Image of Ceramics Cluster Filler 1µm The special characteristic of Ceramics Cluster Filler is that sub-micron primary particles of -6 nanometers combine to make a secondary particle of irregular shape and a large surface area relative to size. The Features of Mounting Device Mounting Direction to Block and its Strong Adhesion There are two grooves in the block mounting device. Setting (mounting) is possible in whatever direction required by the type of clinical cases or device. Also, a special oil and water-resistant adhesive is used in order to prevent the device falling during machining.the shape of the mounting device is specially designed to ensure a perfect mechanical fit between block and device. 1 notch type is also available.

4 Operations of KZR-CAD Hybrid Ceramics Block 1 Key Points of Forming Abutment Tooth Important Note of Forming Cusp Margin Over 1.3mm Pit and Fissure Over 1.mm Round off the outside diameter to make it smooth. Forming Margin Area <Recommended Examples> <Contraindicated Examples> Margin Over.8mm Please prepare a sufficient thickness depending on the case. Shoulder with Rounded Inner Angle Deep Chamfer J-Margin Knife-Edge 2 Flow of Making CAD/CAM Crowns Preparing a Model Scanning the Model Setting KZR-CAD HR After Milling KZR-CAD HR *Delcam Japan Co., ltd(imetric D12i) *Roland DGA Corporation (left: Large Size, right: Small Size) (Dental Milling Machine DWX-) Cutting Sprue Removing Scratches with Silicone Point Polishing with Robison Brush Final Polishing with Cotton Buff Please use our related product, C&B Nano Diamond Polisher, with the speed of less than 2,rpm for polishing and final polishing to make it glossy. Please take a very small amount of the polisher. Excessive application of the polisher during polishing makes it difficult to get the best possible gloss. Completion KZR-CAD HR s outstanding features are the high strength and high durability achieved through its Ceramics Cluster Filler. Thanks to this, finishing can be achieved more easily and quickly and look more naturally by polishing with C&B Nano Diamond Polisher, an effective abrasive agent containing diamond. 3 Key Points of Setting Forming Abutment Tooth Form the abutment tooth, paying attention to the shape of margin area. Alumina Sandblasting Surface Treatment Blast with µm alumina Tooth Surface Treatment Cement Application Pressing Down and Light-Curing particles at a pressure of MPa. Clean with ethanol and use an air gun to dry. Apply surface preparation agent for ceramics and leave it to dry. Perform surface treatment in accordance with the proper instruction of the cement to be used. Apply resin cement for CAD/CAM hybrid ceramics block inside the crown in accordance with the proper operational instructions. Press it down to fit and lightcure in accordance with the proper operational instructions. Then, remove surplus cement.

5 Lineup Type A2 A3 A3.5 KZR-CAD Series S L Size/Dimension b a c unit: approx.mm Disc Disc/Block Type S L a (width) b (depth) c (height) Properties (reference value) Vickers Hardness Flexural Strength Breaking Energy Three Point Flexural Test *1) Double-Axis Flexural Test *2) Toothbrush Abrasion Resistance (Surface Roughness after,-time-brushes) X-Ray Imaging Characteristic/Fluorescence HV.2 MPa MPa N mm Ra (µm) Yes The values are for reference and not products specifications. *1) Three Point Flexural Test in accordance with JIS T 6517 *2) Double-Axis Flexural Test in accordance with ISO 6872 (applicable pitch circle diameter: 12 mm) 9 ± ± 5 3 ± ± 4 <.15 Disc Related Product C&B Nano Diamond Polisher (5g) For polishing and finishing KZR-CAD HR, use C&B Nano Diamond Polisher which contains great amount of diamond particles in order to achieve beautiful luster quickly. Yamamoto Precious Metal Co., Ltd. Head Office: 3-7 Sanadayama-cho Tennoji-ku Osaka , Japan Branch Office: Tokyo, Osaka, Sendai, Nagoya, Fukuoka, JAPAN Factory and R&D: Kochi, JAPAN P: F: E: contact@yamakin-gold.co.jp INTERNATIONAL214929