This high-yield revision note on Cements in Dentistry: Zinc Phosphate vs GIC vs Resin Cement Comparison covers everything examiners typically test under Dental Materials — structured as quick-reference tables, clinical correlations, mnemonics and previous-year-style high-yield points. It's built for last-mile revision before NEET MDS, INI-CET MDS and INBDE, so you can scan it in minutes instead of re-reading a whole textbook chapter.
| Cement | Type | Setting Reaction | Use |
|---|---|---|---|
| Zinc Phosphate | Acid-base (oldest) | Zinc oxide + phosphoric acid → exothermic, highly acidic initially (pH~2) | Luting crowns/bridges, high compressive strength but no adhesion/anticariogenic property |
| Glass Ionomer Cement (GIC) | Acid-base | Polyacrylic acid + fluoroaluminosilicate glass → ion leaching, chemical bond to tooth via chelation with calcium | Luting, restorations (esp. pediatric/ART), fluoride release (anticariogenic), true chemical adhesion to enamel/dentin |
| Resin Cement | Polymerization (composite-based) | Free radical polymerization, needs bonding agent | Highest strength & esthetics, luting all-ceramic/veneers, technique sensitive, no inherent anticariogenic property |
| Zinc Oxide Eugenol (ZOE) | Acid-base/chelation | ZnO + eugenol → zinc eugenolate | Obtundant/sedative effect on pulp, temporary restorations, cannot be used under composite (eugenol inhibits resin polymerization) |
| Polycarboxylate cement | Acid-base | ZnO + polyacrylic acid | First cement with true adhesion to tooth structure, kind to pulp (large polyacrylic acid molecule can't penetrate tubules deeply) |
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