Chris Walinski, clinical director of Biolase, says that the company's lasers also don't make tiny cracks in teeth called "microfractures, " which can be an unwanted side effect of drilling.

WSJ: To Cut Tooth Decay: A Laser vs. a Drill

The Employment Equality (Sex Discrimination) Regulations of 2005 provided clear protection for any woman subjected to "unwanted conduct that has the purpose or effect of violating her dignity or of creating an intimidating, hostile, degrading, humiliating or offensive environment for her".

BBC: Jimmy Savile and workplace culture today