Kate Middleton smile: Secret to Duchess of Cambridge s perfect pearly whites

Smile like a princess: The secret to Kate Middleton”s perfect pearly whites revealed

Before and after: The former Kate Middleton in 2006 (left) and on tour in Canada Before and after: The former Kate Middleton in 2006 (left) and on tour in Canada

Before and after: The former Kate Middleton in 2006 (left) and on tour in Canada

What is “micro-rotation”

Perfect smile: In July the Duchess of Cambridge teeth looked flawless, just like her husband

Expert: Dentist Didier Fillon can charge between 4,000 to 11,000 for his work

Expert: Dentist Didier Fillon can charge between 4,000 to 11,000 for his work

Customers: Sadie Frost (left) Customers: Sadie Frost (left) and Kelly Brook

Satisfied customers: Sadie Frost (left) and Kelly Brook are also rumoured to have used the French dentist to create their beautiful smiles