"Those are both fine. Just don't do anything that puts undue pressure on them for the time being." Guppy says. "Whether it's martial arts, skydiving or annoying Gene Hunt. If you break them again when they're half healed, it's harder for me to fuse them again."

He puts the scanner away and gets the tooth from Work Experience Waitrat. He cleans it thoroughly.

"Okay, I'm afraid this bit is going to hurt." he says, "But not for too long."

Once Sherlock is ready, he reinserts the tooth.