Access to NHS dentistry is down to “geographical accident”, the Green Party has claimed.

In a report, A Green New Deal for the NHS, due to be published this Friday, it claims between 55 and 60 per cent of NHS practices are not taking on new NHS patients.

Using responses to freedom of information requests, the party said some primary care trusts have no practices that are taking on new patients in their patch and access to NHS dentists varies between one and 0.25 dentists per 1,000 people.

It claims the percentage of children visiting NHS dentists has also fallen and the number of adults able to access such care is in decline.

The party claims £1.8bn is needed to provide free NHS dentistry care to 75 per cent of the population, an increase from the current 50 per cent who have access to it.

“It seems little to ask to restore NHS dentistry to what it should be, a service that Britain can be proud of,” said Green Party health spokesperson Stuart Jeffery.