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A detailed educational poster titled "DENTIN BONDING AGENT" for Index Institute of Dental Sciences, Department of Conservative Dentistry and Endodontics. Dark green header with white text. IDS logo top right. Definition box: "A dentin bonding agent is a material used to achieve adhesion between restorative materials and dentin by forming a micromechanical and/or chemical bond with the tooth structure." Large table with columns: GENERATION | TYPE | COMPOSITION | STEPS | ADVANTAGES | EXAMPLES Row 1 - 1st GENERATION (1960s-70s) | Conventional adhesive | NPG-GMA, glycerophosphoric acid dimethacrylate (GPA-DMA), cyanoacrylates, polyurethanes | Etch, Apply adhesive (2 steps) | Chemical bond to calcium, Simple application | Cervident, NPG-GMA Row 2 - 2nd GENERATION (1970s-80s) | Smear layer adhesive | Phosphorous esters of methacrylate derivatives (Bis-GMA/HEMA) | Etch enamel + apply adhesive (2 steps) | Ionic interaction with smear layer calcium | Clearfil Bond System F, Scotchbond, Bondlite Row 3 - 3rd GENERATION (mid-late 1980s) | Smear layer modifier | Separate etchant, combined primer and bonding resin with increased hydrophilic monomers | Etch, Rinse, Primer + Bonding resin (3 steps) | Improved bond strength, Better infiltration of dentin | Scotchbond 2, Gluma, Clearfil New Bond Row 4 - 4th GENERATION (1990s) | Total-etch 3-step system | 37% phosphoric acid, HEMA, Bis-GMA, TEGDMA dissolved in ethanol/acetone/water | Total Etch + Primer (Bottle A) + Adhesive (Bottle B) — 3 separate steps | Highest bond strength (17-25 MPa), Strong bond to moist dentin | Scotchbond Multipurpose, All-Bond 2, OptiBond FL Row 5 - 5th GENERATION (mid-1990s) | Total-etch 2-step / one-bottle system | HEMA, Bis-GMA, Acetone, ethanol and water, Photoinitiators — Primer and adhesive combined in ONE bottle | Total Etch + Apply one-bottle adhesive (2 steps) | Less post-op sensitivity, Fewer steps than 4th generation | Single Bond, Prime & Bond NT, One-Step Row 6 - 6th GENERATION (late 1990s-2000s) | Self-etch 2-step system (Type I) / Self-etch 1-step (Type II) | Acidic methacrylate monomer, HEMA, Bis-GMA or UDMA, Water, Acetone/ethanol, Photoinitiator, Fluoride | Self-Etch Primer + Bonding Resin (no separate acid etch or rinse) | Comparable bond strength, Reduced postoperative sensitivity | Clearfil SE Bond, AdheSE, Prompt-L-Pop Row 7 - 7th GENERATION (2000s) | Self-etch 1-step / All-in-one system | Complex mixtures of acidic monomers, hydrophilic and hydrophobic resins, water, volatile organic solvents — single bottle | All in one: self-etch + prime + bond in single bottle (1 step) | Simplest technique, No mixing errors, Disinfecting and desensitizing properties | G-Bond, iBond, Xeno IV Row 8 - 8th GENERATION (2010s-2020s) | Universal / Multi-mode adhesive | 10-MDA/MDP, HEMA, Bis-GMA, Dimethacrylates, PAC, Water, SiO2 nanoparticles, CQ, Ethanol | Multiple Modes: Etch and Rinse, Self-Etch, Selective Etch | Highly versatile, Bioactive and reparative potential, Excellent durability, Reduced post-op sensitivity | Scotchbond Universal Plus, Clearfil Universal Bond Quick, G-Premio Bond Below table: EVOLUTION OF DENTIN BONDING AGENTS: 8 GENERATIONS timeline bar showing Gen 1 through Gen 8 with arrows. Footer: GUIDED BY: Dr. Suparna G. Saha, Dr. Aruna Kanaparthy, Dr. Shefali Singh, Dr. Shakti Singh, Dr. Katya Pandey, Dr. Ankita Grace Lal, Dr. Mrinalini Chaddha | PRESENTED BY: Taniya Sirodiya (22059), Vidyut Parmar (22062), Vanshika Patidar (22060), Vijeta Patil (22063), Tanishka Soni (22058), Vanshita Gupta (22061), Shweta Kumari (22057), Yashi Sharma (22064). Professional academic poster style with dark green, white and gold color scheme.