Rap star Usher was in a panic after discovering he had left his dental retainer at a restaurant after lunching with his mother.

The R+B star was dining at posh Los Angeles hotel Chateau Marmont on 9 February (06) and placed his retainer on the table while he was eating lunch with his mother, JONETTA.

After the two left the hotel, Usher suddenly panicked when he realised he forgot his retainer.

The star's mother was overheard telling the singer, "What are you going to do if they threw it away? Pick it up from the trash?"

After rushing back into the hotel, the relieved star found was able to locate his dental device.