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Obsidian Milling Blocks Instructions for Use

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1. 1 0 mm For optimum milling and restoration integrity the following criteria are also recommended The margin area should be a shoulder or chamfer with at least 1 0 mm clearance with NO sharp angles For inlays and onlays the preparation must be expulsive with at least a 6 degree angle The preparation should have no sharp angles Always have a round preparation on margins as well as on occlusal table and cuspid reduc tion Avoid significant changes in thickness confined to a small area within the restoration For the best results and clinical success more attention should be given to design The software generated design of the restoration may need to be adjusted for each individual clinical situation For detailed design guidelines including those for inlay onlay and partial crowns please refer to the User Manual 6 Milling Obsidian Milling Blocks are designed for CAD CAM procedures that utilize a milling device These can be larger milling machines in the labo ratory environment or chairside milling equipment which most likely use a mandrel system to secure the Obsidian Milling Block into a fixture Please follow the manufacturer s operating instructions specific to the CAM device in order to position the Obsidian Milling Block correctly The CAD software needs to be followed in order to have a successful data transfer to the CAM device and a problem free milling procedure 7 Finishing After m
2. ceramic pegs on a standard honeycomb firing tray Crystallization and glaze or crystallization stain and glaze can be con ducted in a single combined cycle See the User Manual for details TABLE 4 Crystallization Heating Cycle for Obsidian Milling Blocks Ivoclar Programat CS2 EP 5010 EP 5000 P300 or similar Vacuum Quality 72 mbar N A Standby Temperature Closing Time S 400 C 3 minutes Heating Rate t 90 C min N A Holding Temperature T Holding Time H 780 C 10 seconds Heating Rate t 40 C min N A Holding Temperature T Holding Time H 820 C 10 minutes Cooling Rate N t 50 C min N A Long term Cooling L 680 C N A Vacuum 1 Level V1 on V2 off 400 C 780 C Vacuum 2 Level V1 on V2 off 780 C 819 C Whip Mix Pro 100 Vacuum Quality 72 mbar N A Entry Temperature Entry Time 400 C 3 minutes Soak Time 0 minutes N A 1st Heating Rate 1st Temperature 90 C min 780 C 2nd Heating Rate Final Temperature 40 C min 820 C Hold Time 10 minutes N A Lower Table Cool Time 680 C 1 minute Use Vacuum Yes N A NOTE Step by step instructions for adding an Obsidian firing program for different model furnaces can be found at www ObsidianCeramic com resources A Do NOT open furnace or remove the crystallized restorations until your furnace cools sufficiently for safe removal A Refer to the operating instructions for th
3. Obsidian Milling Blocks Instructions for Use Manufactured by CE Ec REP MDSS Schiffgraben 41 30175 Hannover Germany Prismatik Dentalcraft Inc A wholly owned subsidiary of Glidewell Laboratories 2212 Dupont Drive Irvine CA 92612 USA 888 303 6470 Fax 800 579 8233 ENGLISH Glidewell Direct 18651 Von Karman Ave Irvine CA 92612 Within U S 888 303 3975 Within Canada 888 278 0414 For all others 001 949 399 8411 Fax 800 579 8233 www glidewelldental com A Do not discard Instructions during product use NOTE Please refer to the Obsidian Milling Blocks User Manual for more detailed instructions 1 Product Description Obsidian Milling Blocks are lithium silicate ceramic to be supplied with or without an attached mandrel using CAD CAM methods The product can produce a variety of monolithic restorations with great esthetics life like translucency and high strength including full contour crowns inlays on lays veneers partial crowns and substructures due to its excellent machin ing properties The milling blocks will be available in the commonly used VITA Classical and Chromascop Bleach shades 2 Indications for Use This device is used to fabricate ceramic dental prostheses in the nature of single unit crowns for posterior and anterior applications using CAD CAM methods 3 Contraindications There are no known contraindications 4 Technical Data Table As measure
4. d according to ISO 6872 Table 1 Type Il Class 3 Coefficient of Thermal Expansion CTE 298 773K 12 2 x 10 6 deg K Flexural Strength 385 45 MPa 404 MPa Weibull Characteristic strength 5 Design of Restorations NOTE Obsidian undergoes a linear shrinkage of 0 1 during the crystallization process Preparation guidelines and minimum thickness recommendations are shown in Tables 2 and 3 Failure to comply with these recommendations may result in chipping delamination and or fracture of the final restoration For specific instructions on design of the restorations please refer to the applicable CAD manual designated for your CAD system Full con tour crowns should follow the same minimum thickness rules Table 2 Minimum Thickness in mm for Obsidian Restorations ania Crowns Ny ae Yea anos Anterior Premolar Molar Circular 1 0 1 0 0 6 1 5 1 2 1 5 1 5 eee 10 10 o7 15 15 15 15 isthmus width Page 1 of 2 Table 3 Preparation Guidelines Recommended Minimum Thickness Reduction Single Units for Full Anatomy Restorations standard Libial Lingual 2 1 2 mm Anterior Incisal Occlusal gt 1 5mm Margin area Shoulder Chamfer 2 1 0 mm Cervical 2 0 6 mm Labial 2 0 6 mm Veneer Incisal Edge gt 0 7 mm Margin Area gt 0 6 mm Buccal Lingual 2 1 5 mm Posterior Incisal Occlusal 2 1 5 mm Margin area Shoulder Chamfer 2
5. dian blocks ensure there is NO damage such as cracks and chips in the block The blocks should be stored at room temperature and away from dust contamination and humidity When NOT in use store blocks in the original packaging 13 WARNING Do NOT inhale dust Do NOT get dust into eyes or have prolonged con tact directly with the skin Personal Protective Equipment PPE such as gloves masks and lab coats are recommended in order to avoid pos sible contact and irritation to skin or eyes during processing A To request the MSDS SDS for this product call Glidewell Direct in the U S at 1 888 303 3975 14 User Manual For a copy of the Obsidian Milling Blocks User Manual please visit www ObsidianCeramic com resources or call Glidewell Direct at 1 888 303 3975 15 Questions Comments For questions and or comments or for further instructions regarding the use of this product contact Glidewell Direct in the U S at 18651 Von Karman Ave Irvine CA 92612 or call 1 888 303 3975 16 Symbols mal Manufacturer mi Consult Instructions for Use LOT Batch Code R By Prescription Only m Manufactured Date A Caution REF Reference Number 3033775_1 1 ECO 3034352 GD 1058 071315
6. e particular oven used for proper use placement of the product and calibration Ensure that the oven used is calibrated according to the particular manufacturer s specifications Contact your oven manufacturer for further instructions 9 Stain Glaze Veneering and Add On Accessories If desired stain glaze veneering or add on may be applied to the milled Page 2 of 2 restoration For recommended accessories and detailed instructions on their use please refer to the Obsidian User Manual Failure to use the recommended accessories may result in chipping or fracture of the final restoration See section 14 of this IFU for User Manual download order ing information 10 Adjusting the Crystallized Restorations It is recommended that NO additional finishing be performed after the restoration is in the crystallized and finished glaze phase 11 Cementation The restorations must be etched prior to cementing Refer to the User Manual for etching instructions HF concentration and etching time The dental professional should use conventional adhesive resin or self adhesive resin cement for luting Obsidian Adhesive cementation requires salinization or conditioning of the bonding surface of the resto ration Adhesive cement is preferred for inlay onlay and partial crown Anterior and posterior full restorations can be cemented with conven tional adhesive resin or self adhesive resin cements 12 Storage Before storing Obsi
7. illing carefully remove the restoration from the still attached block and finish the restorations with the recommended tools at low speeds with light pressure see User Manual for specific information All diamond tools used on Obisidian restorations must be of fine grit size 10 75 microns Any diamond tool with a grit size greater than 75 microns is not recommended for use either intra orally or extra orally 3033775_1 1 GD 1058 071315 ECO 3034352 Failure to use recommended tools or their equivalent may result in chipping or fracture of the final restoration See the User Manual for additional information All finishing is to be done prior to crystallization After crystallization it is recommended that NO additional finishing be performed 8 Crystallization All Obsidian milled restorations must go through a final Crystallization Cycle Table 4 Prior to crystallization clean the restoration in an ultrasonic water bath or blast with a steam jet Apply stain and spray glaze For chairside restorations stain and or glaze application is optional Instead the restoration can be hand polished to a highly esthetic appearance Refer to the User Manual for specific instructions on hand polishing Obsidian restorations after crys tallization Program your oven using the applicable oven manual Always support the inside of the crown with firing paste and a peg for crystallizing Obsidian restorations Only use the standard

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