Dr Nick, based at Wimpole Street, Central London, added: "It's funny to think of the Oralift as a brace that beautifies but that's what it is. It can turn an ugly duckling into a swan.

"People spend a fortune on cosmetic surgery which doesn't always have the desired result and can occasionally prove disastrous. Oralift uses the body's own natural healing processes. And it is completely safe."

Janan Harb, 58, widow of King Fahd of Saudi Arabia, said on the dentist's website: "This treatment has given me back my youthful look and restored the vitality to my face. It is amazing."

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