1. Adults with missing or damaged back teeth: Steel teeth are more suitable for restoration of back teeth as their color does not match the teeth and the metal is more conspicuous. Back teeth are mainly used for chewing, and the high hardness and retention of steel teeth ensures that the restored tooth is stable and durable.
2. Crowns that need close protection: Steel teeth provide close protection for crowns, and are suitable for teeth that are severely damaged and need extra protection.