The new strength in self-adhesive cement
is stronger Now offering comparative physical properties to current adhesive resin cements, is the next evolution in easy-to-use, versatile, self-adhesive. Designed with a highly efficient self-cure polymerisation reaction, always delivers high bond strengths and exceptional physical properties, even without light activation. The transmission of light has never been a certainty This experiment was designed to simulate a clinical situation. The light intensity of a LED curing unit was measured following its transmission through different restorative materials. Light intensity reduces drastically in each case, showing the importance of an efficient selfcure polymerisation. 1100 mw/cm² 0 mw/cm² is suitable for bonding and cementation of indirect metal, PFM, composite, zirconia, alumina and allceramic restorations (including posts), and retains the simpleto-use handling characteristics popularised by the previous generation of self-adhesive. Transparent disc 50 mw/cm² Metal 1-mm thick metal disc. 50 mw/cm² Zirconia 0.4-mm thick zirconia disc with ceramic layering up to 1.6 mm. Ceramic 0.5-mm thick ceramic disc (lithium disilicate) with ceramic layering up to 1.5 mm. Source: Pereira et al., Sao Paulo University, Brazil 2
Innovation Advanced resin polymerisation initiation systems; patented self-cure initiation technology gives surety of a complete cure, high strength and strong adhesion even without light activation. As the majority of indirect restorations significantly limit transmission of curing light, a strong dark cure reaction offers security to ensure clinical durability of the cement. The new initiation system technology also introduces a high level of chemical stability to give a 2-year shelf life without refrigeration. Finer glass fillers; used to improve flow characteristics, physical properties and cement wear resistance while decreasing cement film thickness to just 3 microns. Higher polymerisation conversion; gives superior colour stability and stain resistance, as well as helping achieve more durable adhesion over time. Proprietary phosphate ester monomer; enhances the level of adhesion to a variety of substrate surfaces. Higher strength: self cure or light cure Adhesive resin cements Unicem2 Clearfil SA Cement* SpeedCEM * Unicem Aplicap* G-CEM Capsule Multilink Variolink II* Panavia F2.0* Self-cure Light-cure 0 20 40 60 80 100 120 140 160 Flexural Strength (MPa) GC R&D 3
Versatility Strong chemical bonding and self-curing capabilities are essential for durable bonding of indirect metal, zirconia and opaque ceramic restorations. Challenge In many clinical cases, light simply doesn t penetrate through indirect restorations, compromising polymerisation and leading to poor bonding and poor physical properties with self-adhesive. Solution achieves strong chemical bonding and provides exceptionally reliable self-curing capabilities with all materials, thanks to its unique initiator system. Even without light activation, will provide strong durable adhesion. Stronger bonding to dentine: Self-cure tensile bond strength, before and after thermocycling Unicem 2 SpeedCEM* Unicem Aplicap* G-CEM Capsule 1 Day 5000 TC 0 2 4 6 8 10 12 14 Tensile Bond Strength (MPa) GC R&D Simplicity No need for etching or bonding steps. Clean the prepared tooth with pumice and water, rinse and gently dry. One step automix dispensing. Where required, pretreat the internal surfaces of the restoration, then extrude cement directly without over filling Low film thickness (3 µm) and effortless seating. Seat the restoration and maintain moderate pressure. 4
A chemical bond to zirconia Challenge Zirconia restorations offer many advantages but bonding to zirconia remains challenging. Zirconia: Tensile bond strength before and after thermocycling Solution contains a proprietary phosphate ester monomer that chemically bonds to zirconia for a strong and stable bond. Combined with the enhanced physical properties and higher degree of conversion, this results in a stronger and more durable bond to zirconia without the need for a separate primer. Adhesive Unicem 2 SpeedCEM* Rely X Ultimate* Multilink Variolink II* 1 Day 5000 TC 0 10 20 30 40 50 60 Tensile Bond Strength (MPa) GC R&D Ideal consistency for easy excess removal. To remove excess cement, either light cure for 1 second or allow the cement to self cure. Remove excess when the cement feels rubbery. Fluoride release and aesthetic results. Light cure for 20 seconds each surface or wait 4 minutes for self cure set before final finishing. Guaranteed stability, 2-year shelf life. No refrigeration needed. 5 Images by Dr. Javier Tapia Guadix, Madrid, Spain
Reliability gives you a consistently high degree of polymerisation ensuring optimal colour stability, bond strengths and aesthetics for all ceramic restorations. Challenge Cementation of all-ceramic crowns requires a material with extra bonding efficacy and high colour stability for a superior aesthetic result. Lithium disilicate: Tensile bond strength with manufacturer s silane before and after thermocycling Solution high polymer conversion gives increased durability and high bond strengths, preventing loss of retention. exhibits minimal water uptake, is HEMA-free and delivers reliable colour stability. Adhesive Unicem 2 SpeedCEM* Rely X Ultimate* Multilink Variolink II* 1 Day 5000 TC high polymer conversion is important for colour stability when bonding highly aesthetic restorations. 0 10 20 30 40 50 60 Tensile Bond Strength (MPa) GC R&D Before After Images by Dr. Emmanuel D Incau, France 6
Unsurpassed wear resistance Challenge Exposed cement at margins wears over time and can lead to chipping of ceramic restorations. Three-body wear test Light-cure Solution offers high wear resistance due to its small and homogeneously-distributed filler particles, minimal water uptake and highly-polymerised resin matrix. Unicem 2 Self-cure Clearfil SA cement* Replica image of selfadhesive resin cement degradation after 4 years. Adhesive Variolink II* Multilink 0 100 200 300 Depth of Wear (µm) GC R&D Images by Prof. Dr. Marleen Peumans, Belgium Unicem 2 Automix Maxcem Elite 30 µm 30 µm 30 µm SEM images of cement fillers identify the reason for improved wear resistance. 7
GC Luting Navigation Chart Cementation indications Surface pre-treatment G-CEM LinkAce G-CEM Capsule Fuji PLUS FujiCEM Fuji I Sandblast or etch Ceramic primer resin cement resin cement Resin-reinforced glass ionomer cement Resin-reinforced glass ionomer cement Conventional glass ionomer cement Metal, PFM - Inlays, Onlays Y Y Y Y Y - Crowns Y Y Y Y Y - Bridges Y Y Y Y Y - Endodontic Posts Y Y Y Y Y Ceramics eg. lithium disilicate (less than 600 MPa flexural strength) - Inlays, Onlays Y Y Y Y - Crowns Y Y - Bridges Y Y High Strength Ceramics eg. zirconia (greater than 600 MPa flexural strength) - Crowns Y Y Y Y Y - Bridges Y Y Y Y Y - Endodontic Posts Y Y Y Y Shades: Translucent, A2, BO1, AO3 Package: 2 x Syringes (4.6gm, 2.7ml each) 15 x Automix Tip Regular 5 x Automix Tips for endo (with 5x Extension Tips) GC Australasia Dental Pty Ltd 1753 Botany Road, Banksmeadow NSW 2019, Australia T: +61 2 9316 4499 F: +61 2 9316 4196 www.gcasia.info