The Irish Dental Association is joining forces with a number of charities to provide free screening for the disease.

A clinical trial due to start in the next month will gauge the level of night-time teeth-grinding in 50 people — and what the potential triggers are that cause it in the first place.

The jury in the Graham Dwyer trial has seen a photograph of Elaine O’Hara’s punctured and blood-stained mattress, which Gardaí found following the discovery of her remains in September 2013.

MORE than 700 dentists are joining dental schools in Cork and Dublin next Wednesday to offer free painless tests for mouth cancer, a disease that is killing two Irish people every week.