3M ESPE

Dental Products

ESPE Lava Ultimate Instructions for Use Ver 7 March 2015

Instructions for Use

4 Pages

3M TM ESPE TM LavaTM Ultimate CAD/CAM Restorative General The 3M ESPE Lava Ultimate CAD/CAM Restorative is a strong, wear-resistant and highly esthetic mill block that provides a fast and easy-to-use alternative to glass ceramic blocks for milling CAD/CAM indirect restorations... he material is specially processed to enhance its properties for use in CAD/CAM milling procedures... ava Ultimate restorative is a Resin Nano Ceramic containing approximately 80 % (by weight) nanoceramic particles bound in the resin matrix... he ceramic particles are made up of three different ceramic fillers that reinforce a highly cross linked polymeric matrix... he fillers are a combination of non-agglomerated/non-aggregated 20 nanometer (nm) silica filler, non-agglomerated/non-aggregated 4 to 11 nm zirconia filler, and aggregated zirconia/silica cluster filler (comprised of 20 nm silica and 4 to 11 nm zirconia particles)... ava Ultimate restorative is milled into dental restorations using a dental CAD/CAM system; the restorations should be bonded to tooth structure with adhesive resin cement... Indications Lava Ultimate restorative is indicated for inlays, onlays, and veneers... nlays are defined as a restoration where the preparation must minimally contain an internal retentive design element e...  an interproximal or occlusal box... ava Ultimate restorative is not indicated for uses other than those listed... IMPORTANT: Do not use Lava Ultimate restorative for any type of crown because there exists a potential for debonding... ooth Preparation Prepare tooth for maximum mechanical retention... Do • Ensure that inlays and onlays have an internal retentive element  • All internal edges and line angles should be rounded • Non-beveled shoulder finish lines are recommended • Mechanically clean any contamination (e...  debris, powder, temp cement) from the tooth prep and rinse with a strong stream of water • Slightly air dry (surface should appear glossy)  Don’t • Do not undercut  • Do not use any chemical agents after preparation, (e...  H2O2, EDTA, bicarbonates, astringents, desensitizers, solvents) • Do not use laser etching • Do not use eugenol cement for cementation of temporary restoration  06032015 V7   Inlay and Onlay Use traditional inlay and onlay design defined as a restoration where the preparation must minimally contain an internal retentive  design element e...  an interproximal or occlusal box... o not undercut... aper the cavity walls 5-6 degrees to the long axis of the preparation... ll internal edges and angles should be rounded... ncisal/occlusal reduction is 1... to 2 mm clearance in centric occlusion and all excursions... Veneer Standard reduction of the labial surface is 0... mm and 0... mm at the gingival portion because the enamel is thinner in this area... he reduction of the incisal, labial-lingual angle is 0... to 1... mm... eep preparation margins in the enamel... argins for the veneers should be above the gingival tissues Chamfer or rounded shoulder should be used for all preparations... roximal extensions should be far enough into the proximal region so margins do not show and have no proximal-gingival undercuts... Pulp Protection If a near-pulp or pulp exposure has occurred, use a calcium hydroxide layer first, followed by an application of 3M ESPE™ Vitrebond Liner/Base or 3M™ ESPE™ Vitrebond™ Plus Liner/Base to minimize sensitivity... Temporization Place a provisional restoration on the tooth if protection is needed until the permanent restoration is cemented... 3M™ ESPE™ Protemp™ Temporization Materials are recommended)... on-eugenol cement must be used for cementation of the temporary restoration... Milling and Block Sizes Selection of the proper size of mill block for the restoration to be milled is based on completion of all design steps required for the restoration... ou will be prompted by the mill to insert a block corresponding to the size of the restoration... he fabrication steps are described in the instructions for use and user manuals of the different CAD/CAM systems... he manufacturer’s instructions must be followed... Lava Ultimate CAD/CAM block is supplied to the user in a highly cured state... his material should not be fired under any circumstances during finishing or build up/Add on... xtraoral Polishing Procedure 1... Clean restoration in an ultrasonic cleaner or steam cleaner; gently blow dry with an air syringe... rial fit the final restoration to the preparation... f desired, gently adjust contacts, occlusion and accentuate grooves using a fine needle diamond... rind off sprue with coarse rubber wheel or medium-to-fine bur... inish sprue area with medium rubber tool... re-polish with fine rubber tool... sing a soft bristle brush, spin brush in polishing agent to incorporate paste into brush... pply with low speed hand piece, working slowing into surface... he luster quickly appears as the restoration is polished... uff with a muslin rag wheel... Characterization Pit and Fissure Staining To fully maintain the excellent polish retention and stain resistance of Lava Ultimate resin nano ceramic material, only pit and fissure staining is recommended... pplying light-cure glazes or cervical painting is not recommended... se a bur or sandblast to roughen the restoration surface... f additional grooves are desired, carve with a fine bur... aintain minimum wall thickness as described in the sections above (e... , Inlay and Onlay, Veneer)... pply Scotchbond™ Universal Adhesive to the surface of the restoration and scrub it in for 20 seconds... lternatively use a Silane followed by a bonding agent as per manufacturer’s Instructions for Use... ir thin with oil-free, moisture-free air until the solvent is evaporated and the adhesive no longer moves over the surface... ight cure... ollow the stain manufacturer’s Instructions for Use... pply Sinfony™ Magic Stains (or other methacrylate-based, light-cured stains)... ight cure... ollow the stain manufacturer’s Instructions for Use... inish with rubber instruments and polishing paste as described in the Extraoral Polishing Section above... 06032015 V7
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