ABSTRACT
Introduction: The use of an attractive material such as lithium disilicate for fixed partial dentures has increased significantly, but single crown lithium disilicate failure still occurs. Hence, this case report conveyed the causes of lithium disilicate restoration failure. Case Report: A 53-year-old male patient visit a private practice to get help in repairing his fractured anterior single crown with a mild discoloration. The previous single crown restoration on #31 tooth were made 8 years ago with lithium disilicate material. On this case, the #31 tooth were re-prepared to certain thickness. Discussion: Immense tensile forces cause lithium disilicate restoration susceptible to fractures. Material thickness, preparation design along with adequate bonding protocol are essential to the survival rate of the of lithium disilicate restoration. Conclusion: This case report showed that lithium disilicate is a reliable crown restoration material when designed in adequate thickness and followed with appropriate bonding protocol.
