Genre: Instruction

Indications for use : Wiron ® 99 is a nickel chromium based alloy for dental casting and suitable porcelain-fused-to-metal ( PFM ) crown and bridges . For professional use only Rx only Contraindications : No contraindications are known . However , unwanted biological reactions such as allergies to contents of the alloy or electrochemically based reactions may very rarely occur . In case of known incompatibilities and allergies to contents of the metallic material it should not be used . Warnings : Metal dust is harmful to your health . When grinding and blasting use suitable air extraction system / ventilation at the workplace and breathing mask type FFP3-EN149 ! Precautions : In case of occlusal or approximal contact with a different alloy electrochemically based reactions may very rarely occur . Safety and effectiveness in treatment of children or treatment of pregnant or nursing woman have not been established . Wiron ® 99 may influence negatively the interpretation of MRI investigations . Adverse reactions : No adverse reactions are known . Nevertheless , the rare case of occurrence of individual reactions against single components of Wiron ® 99 can never be excluded completely . In this case , the application of Wiron ® 99 should not be continued . Prescription device : Caution : US Federal law restricts this device to sale by or on the order of a licensed dentist . Wax up : Minimum metal thickness ( after grinding ) 0.3 mm . Avoid sharp edges and corners . Framework should be anatomic reduced . Connectors should be modeled as strong and high as possible ( height : min . 3.5 mm , width : min . 2.5 mm ) . In case of bruxismn stronger modellation is required . Use wax or plastic hollow sticks . Do not taper the spruing . Investing : Use only phosphate bonded investment material . Casting : Do not overheat alloy . Use only pure alloy in own crucibles . For an explicit batch tracing the use of only fresh alloy is recommended . In case of re-casting use only identical alloys . Re-casted material must be blasted thoroughly . Use min . 50 % fresh alloy . If applicable use melting powder ( REF 52525 ) . Follow the instructions of the manufacturers of the casting devices for parameters and casting procedures . After casting the mould should cool down slowly . Grinding : use tungsten carbid burs Polishing : To ease polishing blasting with Perlablast ® micro ( REF 46092 , lead free soda glas ) may be suitable . Afterwards polish with rubber polisher and brushes with suitable polishing paste . Ceramic veneering : Use veneering ceramics with suitable CTE ( ISO 9693-1 ) . Follow instructions of use of ceramic manufacturers . The oxides must be blasted ( 250 μm / 3 – 4 bar ; e . g . with Korox 250 , REF 46014 ) . Clean surface thoroughly by steam cleaning or boiling in aqua dest . Do not touch surfaces afterwards with hands . Use artery clamps or similar devices . Support the frameworks adequately during firing cycles . Acrylic veneering : For veneering with acrylic material follow the recommendations of the manufacturers Soldering / brazing : Fixate the parts with soldering investment material ( e . g . Bellatherm ® REF 51105 ) . The prepared gab shall not exceed 0.2 mm with parallel walls . Use a suitable BEGO flux . The flux residues and oxides must etched off . Clean surface thoroughly by steam cleaning or boiling in aqua dest . Laser welding : If applicable use V-seam and filler material . Follow manufacturer's instructions for use and hazard notes of the laser welding devices . Limit of Liability : Except where prohibited by law , BEGO Bremer Goldschlägerei Wilh . Herbst GmbH & Co. KG will not be liable for any loss or damage arising from this product , whether direct , indirect , special , incidental or consequential , regardless of the theory asserted , including warranty , contract , negligence or strict liability . Storage conditions : none Warranty : Whether given verbally , in writing or by practical instructions , our recommendations for use are based upon our own experience and trials and can be considered as standard values . Our products are subject to a constant further development . Therefore alterations in construction and composition are reserved . US Labeling requirements : The device labeling meets the recommendations of FDA applicable guidence documents . Any serious incident that has occurred in relation to Wiron ® 99 should be reported to BEGO Bremer Goldschlägerei Wilh . Herbst GmbH & Co. KG and the competent authority .