Post and core is a dental restoration technique used to rebuild severely damaged teeth, providing a foundation for crowns or other restorations. It involves inserting a post into the tooth's root canal and building up the core structure to support the final restoration.Fiber posts, made from materials like glass or carbon fiber, offer advantages such as:1. *Flexibility*: Similar to natural dentin, reducing root fracture risk.2. *Aesthetics*: Tooth-colored, suitable for anterior teeth.3. *Bonding*: Strong bond with resin cements.Fiber posts are a popular choice for post and core restorations due to their favorable properties and clinical outcomes".