George Clooney appears to have had a smile makeover. The 47-year-old actor sported an extra bright smile at the Costume Institute Gala in New York earlier this month, reported World Entertainment News Network. After examining the photographs, cosmetic dentist Jonathan Abenaim told Star magazine that Clooney looks like he has had a "smile lift". He explained that this involves laser treatment on the gums which results in more of the teeth being on show when the patient smiles. "It fills out his face more and makes him look younger," he said. Mr Abenaim added that the Ocean's Eleven actor also looks as if he has had porcelain veneers fitted to correct his previously crooked smile. "When you grind your teeth, they get shorter," he said. "To restore the original look the dentist has to lengthen teeth with porcelain veneers." George Clooney has recently split from his model girlfriend Sarah Larson, People magazine has reported.