This picture (right) is by dentist Dr Ian Davis, creator of The World of Toothville.

In 2009, Dr Davis had a desire to produce dentally related pictures for his newly refurbished dental surgery and came up with a novel idea: if teeth were the size of a house or a car, how would they be treated?

In such a world, teeth would need builders, decorators and other tradesmen, requiring ladders, cranes and scaffolding to complete their work.

Dr Davis explains: 'My first image was of a decorator on a ladder painting a tooth white. I thought the idea had real potential. Then I went running to my technician next door to get a spare porcelain veneer and I then produced the images of a veneer being placed with a crane. The response from my staff and patients was very positive and by December 2009 I found myself on the centre pages of the London Metro'.

Toothville has since become well recognised and has been on the BBC website. There has been a demand for merchandise and Dr Davis has recently tried his hand at writing comics.

Visit www.toothville.com or follow on Twitter @toothtweets.