2. Veneers

What are they for?: This is a versatile technique used to correct crowding in the mouth, cover badly broken teeth, badly stained teeth, reshape teeth or to close up gaps.

How do they work: Veneers are used to increase the dimension of the tooth, thicken them, make them squarer or longer. Thin slices of porcelain called veneers are shaped and coloured to correspond to the existing teeth. The veneer is bonded onto the front surface of the tooth using a chemical bonding agent. A minimal amount of drilling is used to curve the contours of the veneers.

How long does it take?: Two separate appointments.

How long does it last?: At least 15 to 20 years if well looked after.

Cost:From £350-£450 per tooth.

Stars who have opted for this treatment are Nicolas Cage, Adele, Emma Watson, Simon Cowell