Which situation is an indication for metal ceramic crowns?

Metal ceramic crowns are often indicated for endodontically treated teeth due to their combination of strength and aesthetic appeal. After a tooth undergoes endodontic treatment, it often requires extra support and resistance to fractures, as the tooth structure may be compromised. Metal ceramic crowns provide the necessary durability from the underlying metal substructure, which is especially important for posterior teeth that endure significant occlusal forces. The ceramic overlay also allows for a more natural appearance, which is vital for aesthetic considerations in visible areas.

While other situations presented might have specific considerations, they do not align as directly with the need for the strength and aesthetic balance that metal ceramic crowns offer, particularly after a tooth has been treated endodontically. The other options involve scenarios that either don't necessitate the specific properties of metal ceramic crowns or involve factors that lead to different crown choices being more suitable.