The online study questioned 1, 131 adults, aged 16 and over, about their interest and awareness of both events.

BBC: Commonwealth Games montage

The study also shows an upturn in interest from women, with 45% saying they were more excited about Glasgow 2014 after watching or hearing about London 2012.

BBC: Commonwealth Games montage

"Our study has raised significant concerns about the UK dentistry market which need to be tackled quickly in the interest of patients, " said John Fingleton, the OFT's chief executive.

BBC: Dentistry 'needs urgent reform' says OFT