simeda® - Anthogyr
Contents
1. Programming the kiln Start at room temperature with ramp of 3 4 K min until reaching 1 470 C maintain this temperature for 2 hours then reduce the temperature with a ramp of 3 4 K min until reaching room temperature Depending on the type of furnace natural cooling begins from approximately 600 C SAFETY LIABILITY Temperature C 800 600 400 8 The proper use and handling of this product without our supervision are entirely under the responsibility of the user ANTHOGYR Simeda thanks you for your trust and is available if you need any additional information anthogyr A global solution for dental implantology Anthogyr 2237 Avenue Andr Lasquin 74700 Sallanches France Tel 33 0 4 50 58 02 37 Simeda 8 um Mierscherbierg 7526 Mersch Luxembourg Hotline 352 266 404 841 www anthogyr com2. SINA T User s Manual RECOMMENDED MACHINES The SINA Z or SINA T can be used for all standard HSC drilling applications in dental laboratories VHF machines manufacturer Roeders MB Geis DMG Wiesner Imes etc SINTERING Sintering of milled parts of SINA Z or SINA T is performed in a furnace For this the thermal processing that is recommended by Simeda must not be modified During the sintering process the armature shrinks to reach the required dimensions The temperature has a significant influence on the result It is only after sintering that the armature has the properties needed to be effective in the clinical application RECOMMENDED FURNACES All the conventional programmable furnaces can be used such as furnaces from the following manufacturers MihmVogt ThermoStar Nabertherm Heidorn etc GENERAL PRECAUTIONS The frame manufactured out of a SINA Z or SINA T must be reworked only when absolutely necessary ANY ALTERATION CONSTITUTES A RISK OF MECHANICAL EMBRITTLEMENT OF THE PART Rules to be observed gt Use a fine grain diamond tool with high rotation speed and under abundant irrigation Comply with the minimum thickness of the walls according to the general rules for a dental restaorations the wall thickness must not be less than 0 4mm gt Work under low pressure and do not force the machining gt Avoid trimming the connections between the teeth RECOMMENDED SINTERING SCHEDULE
3. The sintering schedule must not be changed significantly PROPERTIES The SINA Z and SINA T material s properties are given below Physical Properties Bro Ue Peng Pe ea eter mar ete white SINA Z translucent SINA T Don eR ret eee etme ata Net an ger gt 6 035 9 em Vickers Hardness a an 1250 VH Flexural Strength aere ene gt 800 MPa Tena E eter etre crt Geter 7 MPae m 2 Modulus of Elasticity 210 GPa Thermal expansion coefficient 10 10 eK 1 Chemical Composition Chemical Formulation Chemical Substances Zirconium Oxide Zr0 HfO Y 0 CAS No e E gt 99 Hafnium Oxide 205221 236 0182 5 238 1 8 CE No in mass Aluminium Oxide ALO 344 28 other Oxides C AVAILABLE GEOMETRIC FORMS SINA Z and SINA T blocks are currently available in several shapes and thicknesses lt 0 5 lt 05 i i 1314 23 93 1 Yttrium Oxide 1314 30 97 215 233 585 gt 45 10 lt 5 ini i 28 1 Z Discs measuring 98 5 mm in diameter with thicknesses of 10 mm 14 mm 16 mm 18 mm 20 mm 22 mm and 25 mm Square blocks measuring 116 mm x 116 mm and 92 mm x 92 mm Other sizes and thickness can be made available upon request VENEERING Different veneering trials were very conclusive occurred by using HeraCeram VITA VM 9 Heimerle and Meule because this could affect the mechanical properties Sintering is generally performed in an electric furnace
4. SINA Z and ZINA T blocks be sure that they are not gt Exposed to vibrations or impacts gt Manipulated with wet hands gt In contact with fluids such as water or glues for example gt Contaminated RECOMMENDATIONS FOR DENTISTS 1 Preparation In addition to a quality material for the dental prosthesis professional preparation and processing are essential You can achieve maximum patient safety and satisfaction by observing the following recommendations gt Preparation of a fillet or a rounded corner gt 1 5 2mm of minimum occlusal reduction gt Curvature radius 0 7mm Angle of preparation 6 8 There should be no assemblies with more than 2 attachments for the posterior teeth Gluing the assembly can be achieved with some classic phosphate or glass ionomer cement In case of bruxism one should decide if a ceramic restoration is indicated risk of breakage of the cosmetic ceramic 2 Working with the zirconia See the General Precautions paragraph below Dental restorations will need to be cleaned and sterilised according to current procedures Sterilisation using an autoclave is not recommended risk of embrittlement of the zirconia in the long term It is preferable to use chemical sterilisation or an effective disinfection with chlorhexidine for example RECOMMENDATIONS FOR DENTAL TECHNICIANS During the design of the restauration keep the following minimals values gt Wall t
5. hickness for anterior tooth 0 4 mm Wall thickness for posterior tooth 0 6 mm gt Wall thickness for trans screwed unit 0 6 mm Minimal section surface area of the interconnection between 2 adjacent anterior teeth 6 mm Minimal section surface area of the interconnection between 2 adjacent posterior teeth 9 mm MANUFACTURING OF THE BLOCKS After inspection upon receipt SINA Z or SINA T block is ready straight away to be used on the machine Depending on the type of blocks in one block it is possible to machine large assemblies or several small assemblies By means of a clever arrangement utilisation of SINA Z or SINA T block can be optimised Milling of the SINA Z or SINA T block can be done dry or in the presence of an emulsion Do not use any cutting oil Take into account the shrinkage factor indicated on the block F 1 XXXX when programming the parts Also please consider the instructions included in your machine s manual After milling the SINA Z or SINA T block must be inspected visually and must not show the following defects gt A shiny area on the surface gt Discolouration of the block Chipping of material gt Cracks antnoeyr A global solution for dental implantology Anthogyr 2237 Avenue Andr Lasquin 74700 Sallanches France Tel 33 0 4 50 58 02 37 Simeda 8 um Mierscherbierg 7526 Mersch Luxembourg Hotline 352 266 404 841 www anthogyr com simeda SINA Z
6. simmeda SINA Z SINA T User s Manual INSTRUCTIONS SINA Z and SINA T zirconia blocks are a high performance ceramic used for machining customised restorations such as crowns bridges abutments bars superstructures or implant bridges These blocks musn t be used to manufacture an implant CAUTION Before removing a block from its package please read this user s manual carefully It contains important information on the processing of ceramic blocks for the safety of your co workers and yourself as well as the safety of patients When SINA Z and SINA T zirconia blocks are being milled dust enters the air This dust can cause irritation of the eyes and skin as well as damage to the lungs if it is inhaled Therefore please make sure that your milling ma chine s dust vacuum system is always operating properly Wear protective glasses and a dust mask cke HANDLING SINA Z and SINA T zirconia blocks are delivered in a pre sintered state So they still do not possess the final properties of the dental restorations As with all ceramic materials please be particularly careful in the stages of the work Be sure to closely inspect the delivery after receiving it to ensure gt Undamaged packaging gt Product integrity no cracks no colour variation Storage of the SINA Z and ZINA T blocks gt In the original packaging gt n a dry place gt At a temperature between 10 C and 50 C When you use the
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