A patient presents with a fractured mandibular molar with significantly reduced remaining tooth structure and a confirmed bruxism habit. Which crown material provides the best combination of strength, fracture resistance, and wear resistance for this high-stress posterior situation?

Full-contour (monolithic) zirconia is the material of choice for posterior crowns in patients with bruxism and reduced tooth structure. Advantages include: outstanding fracture toughness (900-1200 MPa flexural strength), superior wear resistance, and no layered porcelain to chip. Clinical studies confirm monolithic zirconia demonstrates excellent durability under high occlusal stress over 24-month follow-up with no crown fractures. PFM crowns are problematic in bruxism: the veneering porcelain chips and fractures under cyclic occlusal loads. Full feldspathic porcelain is the weakest ceramic and is completely contraindicated in high-stress posterior bruxism cases. Stainless steel is used in pediatric dentistry, not definitive adult restorations. Monolithic zirconia eliminates the chipping risk by having no layered ceramic — ideal for bruxism patients in the posterior region.