Robert Pattinson chipped a tooth after flossing too hard, according to his Twilight: Eclipse co-star Bryce Dallas Howard.
The American actress, who replaces Rachelle Lefevre as vampire Victoria in the third movie in the blood-sucking saga, told OK!: "He was like, 'Oh, I have to go to the dentist', and I was like, 'Oh no, what happened? Just a check-up?' and he was like, 'No, I chipped a tooth'."
She added: "I was like, 'How?' and he was like, 'Flossing' - who does that? I don't even floss, so he's hygienic, trust me."
Bryce - the eldest daughter of acclaimed filmmaker Ron Howard - said her Twilight co-star is down-to-earth.
"I actually came out to him that I was totally nervous about meeting him. He's such a sweet young man, and there's such a distinctive difference between him and Edward Cullen," she said.
"He does such a wonderful job embodying that character, and bringing that character to life. But when you meet him, he's such a down-to-earth, humble person, you feel bad freaking out around him."