NANO ZR User Manual
Contents
1. 0Os or glass polishing beads Final sintering Once the framework is completely dry the sintering procedure can be carried out During the sintering process the framework will shrink to its final size The full sintering of the framework takes place according to the following Room temperature to final temperature 1450 C Hold time at final temperature 2 hours Cooling down phase up to room temperature approx 5 C min Page 5 6 The following points should be observed Always keep the sintering auxiliaries clean and free of dust so that no contamination may be sintered to the framework Do not sintering in vacuum condition Framework finishing after full sintering After checking fitting accuracy such as contact points and occlusion interior surfaces of the crown should be cleaned by corundum jets or other applicable means such as subsequent evaporation Veneering ceramic NANOZR milling blank is suitable for veneering with conventional zirconium oxide veneering ceramics e g Vintage ZR The thermal expansion coefficient of NANOZR milling blank can be gathered from the technical data Contraindications bruxism insufficient amount of hard tooth structure insufficient preparation results insufficient oral hygiene more than two connected pontics in the area of the posterior teeth known intolerance to the constituents caution when handled by children or pregnant women STORAGE Store in a dry ind2. English Panasonic User Manual NANOZR milling blank EN ISO 13485 Manufacturer Panasonic Healthcare Co Ltd 247 Fukutake ko Saijo Ehime 793 8510 Japan European Representative Panasonic Testing Centre Panasonic Marketing Europe GmbH Winsbergring 15 22525 Hamburg Germany USER MANUAL LSQC0674A Page 1 6 PRODUCT DESCRIPTION Trade name NANOZR milling blank Common name Zirconia dental ceramics Material type Ce TZP AlaO3 nanocomposite ceramics Indications and Dental ceramic type Substructure ceramic for dental restoration or prostheses Type Il Class 6 according to EN ISO 6872 2008 DESCRIPTION OF DEVICE NANOZR milling blank is zirconium oxide pre sintered blocks for open CAD CAM systems or manually operated systems The blank is constructed mainly from zirconium oxide cerium oxide and aluminum oxide They are ideal for indications that require high strength and high toughness such as posterior bridges NANOZR milling blank is milled into the required frame shapes by typical milling systems used by dental technician The milling frame must add approximately 17 to the original size so as to compensate for shrinkage during the final sintering process The exact shrinkage ratio or expansion factor is given according to the milling system used TECHNICAL DATA Composition of the device Zirconium oxide ZrOz Hafnium oxide HfO gt 67 9 wt Hafnium oxide HfO2 lt 4 0 wt Cerium oxide CeO2 10 6 wt Alumi
3. amework shrink by approximately 17 during full sintering the shrinkage ratio of the respective batch which is inscribed on the package label The Expansion which is inscribed on the package label and product label is a magnification of when machining with CAM The shrinkage factor then ensures that the milled NANOZR milling blank restorations demon strate optimum accuracy of fit after full sintering The milling tool should be use of with carbide milling cutters Do not exceed the maximum amount of abrasive agent The milling should be cleaned to avoid cross contamination e g milling dust acid Contamination may result in deterioration of the frameworks during sintering Shrinkage ratio y Shrinkage ratio inscribed on the package label X please see the figure on the right Finishing of framework It is of critical importance to use the correct grinding instruments for finishing and adjusting NANOZR milling blank The following notice have to be observed Non full sintered blanks are susceptible to damage and fracture This fact has to be kept in mind during the entire working procedure All adjustments by grinding should always be carried out while the framework is still in its non full sintered stage if possible do not use water oil cooling or contact media e g occlusion spray The non full sintered framework must not be cleaned with ultrasonic on water bath or with a steam jet Do not blast the framework with Al gt
4. ially veneered restorations the excess available space must be compensated by the corresponding dimensions of the high strength and high toughness NANOZR milling blank component and not by the pressed on or layered on materials The design of the restoration generated by the software has to be individually adjusted if neces sary in accordance with the clinical situation using the design tools If possible the connector design should be extended in the vertical direction rather than in the horizontal direction The following minimum thickness has to be observed for the framework design with NANOZR milling blank after full sintered Please note The minimum dimensions of the NANOZR milling blank s framework before full sintering must be larger by the shrinkage factor Page 3 6 Minimum dimensions NANOZR milling blank full sintered 4 7 unit 8 12 unit Cantilever Anterior Crowns Splinted 3 unit bridges bridges bridges Region crowns bridges with with with 2pontics 2pontics 1pontic Minimum framework 0 3mm 0 7mm 0 7mm dimensions Connector dimensions 4 7 unit 8 12 unit Cantilever Posterior CES Splinted 3 unit bridges bridges bridges Region crowns bridges with with with 2pontics 2pontics 1pontic Minimum framework 0 3 mm 0 7 mm 0 7 mm dimensions 23 0 28 23 2 mm mm mm Connector dimensions Page 4 6 CAD CAM manufacturing of framework Since the NANOZR milling blank fr
5. num oxide AlzO3 21 5 wt Identified specifications after sintered Biaxial flexural strength 1290 MPa Fracture toughness K1c SEVNB 8 62 MPavm Density 5 52 g cm Coefficient of expansion 25 500 C 10 0 0 5 10 K Page 2 6 INSTRUCTION FOR USE Framework model and tooth preparation Fabricate a working model with removable segments as usual The directions of the different CAD CAM systems regarding the plaster to be used must be observed Important for die preparation Check the radius of the incisal occlusal edge on the prepared die maxilla and mandible The prepared incisal edge should be at least as thick as the diameter of the bur used in the cavity during the CAD CAM process If the incisal edge of the prepared die is thinner than the diameter of the bur the incisal edge has to be blocked out accordingly Also observe the information provided by the manufacturer of the CAD CAM system regard ing the die geometry Material specific framework parameters The restoration design is key to the success of durable all ceramic restoration The more attention is given to the design the better the final results and clinical success will turn out to be The following basic guidelines have to be observed The NANOZR milling blank s material is the high strength component of your restoration and must always be given a design that supports the overall shape and cusps In large preparations and for veneered or part
6. oor place in its original packaging WARNING AND SAFETY INSTRUCTION When processing please use personal protective clothing dust mask protective goggles protective glove etc GUARANTEE DISCLAIMER CLAUSE Recommendations regarding the application technique whether they are given orally in writing or in the course of practical instruction should be regarded as guidelines Our products are subject to ongoing development We therefore reserve the right to make changes in handling and composition Do not use NANOZR milling blank excluding the dental intended indications DISPOSAL When discarding please follow the laws Panasonic Healthcare Co Ltd Printed in Japan Page 6 6
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