Espritdent Guarantee’s Fusion Brand Zirconia Understructures and Services to Last a Lifetime remaining free from Fracture and Manufacturing Defects or will be replaced at a cost equal to the value of the original Understructure. Espritdent remains steadfast in honoring its 100% Customer Satisfaction Policy that insures you espritdents products will exceed your expectations or we will expeditiously and professionally remedy the issue.