........just another Self-etching Adhesive? Advantages fast, easy and safe handling no mixing, no inadvertent change of bottles, no wrong dosage no technique sensitivity: critical steps of the total-etch-technique - etching, rinsing and “correct“ degree of moisture in dentin - are eliminated The “All inclusive“ Bond with a special feature...... Components and Functions Base 4-META: MMA: THIT HEMA: Aceton: Water: Conditioning of enamel and dentin Infiltration promotor Diffusion promotor Trifunctional cross linking agent Amphiphilic monomer, Hydrophobation of collagen solvent for monomers Hydrolysis of 4-META (dissociation = acid) ......the application tips contain a polymerization initiator the special Hybrid Bond Brush 4-META 4-methacryloxyethyl trimellitate anhydride clinically proven monomer for years (Super Bond C&B, AQ Bond, Chemiace) excellent etching of enamel good affinity to dental hard tissue good penetration of exposed collagen scaffold bonding to Ca++ enhanced bond strength to enamel and dentin Indications direct restorations with composite resins (incl. compomers, ormocers) indirect restorations in combination with self-, light- or dual-curing composites (inlays, onlays, veneers, crowns, bridges, build-ups) Application Cervical lesion after minimally invasive preparation Application with HB brush, one coat only (20 sec) Air-dry gently (5-10 sec) Light activation depending on curing light 3 to 10 sec. Metafil Flo restoration, finished and polished Easy Procedure - Strong Effect (1) Solubilization of Smear Layer Smear Layer Dentin Bur-cut surface covered with smear Layer Hybrid Bond application Apply one coat of Hybrid Bond with HB brush and leave for 20 sec Demineralization of dentin The surface is conditioned Easy Procedure - Strong Effect (2) volatilization of acetone separation ofmonomer and water remaining liquid separates into monomer and water air monomercoating penetrated monomer adhesive layer hybridlayer Elimination of water film (5-10 sec) including dissolved smear layer Light ativation for 310 sec depending on curing unit used Hybrid Layer Hybridlayer HL ≈ 500 nm 10 K Finger, WJ University of Cologne 2004 To be noticed dispensed Hybrid Bond should be used within 2 minutes close bottle immediately after dispensing (volatilization of aceton) up to 2 drops of Hybrid Bond can be activated with one Hybrid Bond Brush Shear Bond Strength (SBS): Hybrid Bond with light- or self-curing resin composite MPa 35 30 Dentin Enamel 30 25 20 25 22 22 15 10 5 0 light-curing composite 24 h storage in 37° C water self-curing composite Finger WJ, University of Cologne, 2004 Self-polymerization of Hybrid Bond Exotherms of Hybrid Bond (air-dried) in Differential Scanning Calorimeter (DSC) at 37℃. Hybrid Bond covered with Metafil Flo to avoid air inhibition Exothermic intensity 8 min 21 min 10 Data by Sun Medical 20 Hybrid Bond exposed in air 30 40 Time/min SBS of Hybrid Bond/Twinlook on Dentin MPa 30 25 20 15 10 a ab b 5 0 ANOVA: p = 0.026 Data by W. J. Finger, University of Cologne, Germany HYB no l.a. HYB l.a. TWL redox TWL redox HYB l.a. TWL l.a. Marginal Gap Width (MGW) in Cylindrical Dentin Cavities 10 µm b a a c I Bond One Up Bond F Mean Cavity Diameter: 4.1 mm 8 Venus Resin Composite 6 4 2 0 n=8 Clearfil Protect Bond Hybrid Bond Kruskal-Wallis ANOVA: p<0,001; Mann-Whitney U Test: sig. difference < 0,05. Data by W. J. Finger, University of Cologne, Germany SBS on Enamel (MPa) 30 10 min 24 hours 25 22,3 20 15 10 13,9 18,8 15,5 9,6 9,1 18,5 17,3 17,0 11,3 5 0 ABS GBO HYB IBO PLP Absolute G-Bond Hybrid Bond I-Bond Prompt-L-Pop Composite: Venus Endo W & Finger WJ: 2005 n=8 SBS on Dentin (MPa) 30 25 26,7 24 hours 22,5 20 15 25,6 10 min 14,3 19,6 16,6 20,1 16,1 13,1 10 11,7 5 0 ABS GBO HYB IBO PLP Composite: Venus Endo W & Finger WJ: 2005 n=8 MGW of Self-etching Adhesives (µm) # gapfree 10 0 6 4 4 7 0 a b b b b a 8 6 29 µm 4 2 9 40 0 ABS Endo W & Finger WJ: 2005 GBO HYB 10 min IBO EXP Experimental product PLP n=8 Micro Tensile Bond Strength (MTBS) Composite resin Enamel Caries-infected dentin Grinded dentin Caries-affected dentin Bonding agent Composite resin Dentin Test pieces of Test pieces of caries-infected dentin sound dentin Quintessence Vol.23, No.11, 2004 Micro Tensile Bond Strength (MTBS) Test results Unit:MPa HYB GB ABS APL PB Sound Dentin 44 40 25* 17* 49 Caries affected dentin 43 10 - - 16 MTBS of G-Bond and Protect Bond to the carious affected dentin were remarkably low, while MTBS of these to sound dentin were sufficiently high. In actual clinical cases, sometimes it is difficult to take off all caries-affected dentin after preparation of carious cavity. MTBS of self-etching adhesives to various caries dentin Product Name Micro-tensile Bond Strength (MPa) Caries-affected Caries-infected Sound dentin dentin dentin Protect Bond 44.8+6.7 23.6+4.9 14.1+4.7 G-Bond One-up Bond F Absolute Touch&Bond =AQ Bond AQ Bond Plus 33.6+8.3 20.1+5.7 24.9+4.1 24.6+6.7 16.7+3.4 24.2+7.9 14.1+4.7 14.6+4.6 12.5+2.8 24.9+8.1 27.3+4.4 26.6+7.0 33.6+7.3 29.4+4.1 28.9+6.7 30.7+7.7 32.8+4.4 28.4+7.9 Brush&Bond =Hybrid Bond Abstract of IADR 2005 at Baltimore Quintessence Vol.23, No.11, 2004 Efficiency of Hybrid Bond/Metafil CX in Class V cavities U. Blunck, Berlin 2004 • • • • • Eight human incisors in each of three groups Oval shaped cavities (4 mm in incisal-apical, and 3 mm in mesiodistal directions) Half of cavity margin located underneath cemento-enamel junction – Group 1, 20 s undisturbed dwell time – Group 2, 20 s brush agitation – Group 3, 30 s brush agitation 21 days water storage – replica – 2000 thermocycles (TC) between 5 and 55° C, replica Qualitative and quantitative analysis of cavity margin at 200-fold magnification (SEM) Perfect Margin in % of Total Margin Length Hybrid Bond/Metafil CX before TC % 100 after TC 90 80 70 60 50 E 20s -A E 20s +A E 30s +A D 20s -A D 20s +A D 30s +A Application time (s) on Enamel or Dentin with (+A) or without (-A) brush agitation Data by U. Blunck, University of Berlin, 2004 Microtensile strength of adhesives utilizing indirect and direct composites Brown, P.L. et al., IADR Honolulu 2004 Adhesive Indirect resin Indirect resin Direct resin Direct resin 24hrs 12weeks 24hrs 12weeks AllBond2 45.9 43.5 44.8 60.4 Prime&Bond NT DC 46.6 34.5 44.5 57.4 Optibond Solo+DC 49.3 31.7 61.8 70.9 Brush&Bond =HybridBond 45.4 54.8 50.4 61.2 iBond 45.4 47.2 44.7 35.6 Clinical Study: Hybrid Bond and Xeno III in cervival lesions: one year results Ernst et.al., AADR Orlando 2006 • 50 patients with two cervical lesions each • Hybrid Bond or Xeno III combined with Filtek Supreme • After six months all restorations in place and acceptable according to USPHS criteria (apart from one Xeno III) • ► After one year all Hybrid Bond restorations retained and showed clinically excellent results, while 5 Xeno III restorations were lost in part or in toto Hybrid Bond and Xeno III in cervical lesions: one year results (% alpha ratings) Ernst et.al. 2006 Margins Marg. Discol. Sec. Caries Retention Sensitivity HYB 94 94 100 100 100 XEN 78 88 100 90 98 Comparison of the mechanical properties of resin-based adhesives and fissure sealants Kunzelmann et.al., ConsEuro Rome 2006 • Comparison of surface micro hardness, elastic modulus, wear strength • Hybrid Bond exhibited highest modulus of elasticity. HB and Clearfil SE achieve comparable hardness values as fissure sealant Delton FS • ► Dentin Bonding agents can be an alternative for conventional fissure sealants In-vitro evaluation of self-etching adhesive with build-up composite resin Nakano et.al., AARD Orlando 2006 • Comparison of in vitro bond strength of Brush&Bond (= Hybrid Bond) and build-up resin Absolute Dentin (Parkell) with or without various dentin surface treatments • ► Hybrid Bond in combination with Absolute Dentin can be used to bond to root dentin whether the dentin is untreated, prepped with phosphoric acid, or with phosphoric acid followed by NaOCl (10%). There was no substantial difference of MTBS whether the core material was light cured or allowed to self-cure Hybrid Bond = Brush & Bond* * Parkell, USA CRA Newsletter Nov/Dec 2003 Which SEP Adhesives have most of the clinically desirable characteristics (number of steps, time, safety)? Brush&Bond = Hybrid Bond AdheSe Clearfil SE Bond (totally 21 Products!) Application Steps and Time Product Step1 Step 2 Step 3 Step 4 Step 5 Total Time 3 26 - 35 s Hybrid Bond 1 Layer Bond 20 s Air-drying 3-5 s Light-curing 3-10 s Xeno III Mixing Liquid A+B Application 20 s Air-dispers. 3s Light-curing 10 s 4 38 s Adper PLP Squeezing, Folding 10 s Application 15 s Air-dispers. 3s Light-curing 10 s 4 38 s iBond 1. Layer 2. Layer 3. Layer 30 s Air-drying Light-curing 20 s 5 < 50 s AdheSE Primer 3 + 15 s Air-dispers. 15 s Bond 5 s Air-drying 3s Light-curing 10 s 5 51 s Clearfil SE Primer 20 s Air-drying 3s Bond 10 s Air-dispers. 3s Light-curing 10 s 5 46 s