Nicky now realises she does have some signs of OI: poor, pearly or translucent teeth, a greyish tinge to her eyes which look similar to her brother, Wayne, who has been diagnosed as suffering OI, and loose joints.

BBC: NEWS | Health | 'Please don't take my baby'

Research shows that other drinks thought to be better --fruit juices, teas and energy drinks-- can also have harmful effects on teeth, turning the pearly whites to shrinking, spotted yellows marred with pockmarks.

CNN: Juices, tea and energy drinks erode teeth