This study investigates the mechanical properties of Nickel-Chromium (Ni-Cr), Yttrium Stabilized Zirconia Polycrystals(3Y-TZP), and Zirconium Silicate (ZS) for dental crown applications. Characteristic strength, fracture toughness, and crackgrowth parameters were evaluated to assess the suitability of these materials for clinical use. Nickel-Chromium (Ni-Cr)exhibited moderate strength and toughness, making it a viable option for dental crowns, albeit with slightly lower fracturetoughness compared to zirconia-based materials. Yttrium Stabilized Zirconia Polycrystals (3Y-TZP) demonstrated robustmechanical properties with high strength and toughness, particularly suitable for posterior crowns. Conversely, ZirconiumSilicate (ZS) showcased exceptional mechanical properties, offering both strength and natural-looking aesthetics, makingit an excellent choice for anterior crowns. Clinical observations suggest that material selection should consider mechanicalproperties alongside patient-specific factors and clinical requirements to achieve optimal treatment outcomes and patientsatisfaction in dental restorations. This comparative analysis provides valuable insights for clinicians in selecting appropriatematerials for dental crown applications, ultimately enhancing the quality and longevity of dental treatments.