Which material is commonly used for a direct intracoronal filling that offers esthetics and good wear resistance?

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For a direct intracoronal filling, you want a material that looks like a natural tooth and holds up to chewing forces. Composite resin fits this need because it is tooth-colored, providing excellent esthetics, and it bonds to enamel and dentin with adhesive systems, creating a strong seal and helping preserve tooth structure. Modern composites are designed to resist wear well, making them suitable for posterior surfaces as well as anterior ones. Finishing and polishing yield a smooth, enamel-like surface that resists plaque accumulation. Amalgam is very durable but not esthetic. Glass ionomer releases fluoride and bonds to dentin but generally wears more quickly under chewing. Resin-modified glass ionomer improves on wear and aesthetics compared with conventional GI, yet it still doesn’t match composite’s combination of esthetics and wear resistance in many intracoronal restorations.