The UK's chronic shortage of dentists is evidenced in a study that shows a staggering proportion of people have not had their teeth checked since turning 18. The most desperate need is highlighted in Newcastle, where one in 10 people are affected. A poll of 2,000 adults found that 10 percent of those from the North East had not been treated as adults. The figures emerged as the Mirror campaigns for better access to NHS dentistry for everyone. Health Secretary Wes Streeting faces a mammoth task