内容摘要：Matthew's dad had brown eyes and black hair. His grandparents had piercing blue eyes.

Matthew's dad had brown eyes and black hair. His grandparents had piercing blue eyes.

"This dentist's in particular have made a big effort to make sure the practice is wheelchair accessible for me - that means a lot."Jody's dentist is Dr Harj Singhrao, owner of Newbridge Dental Care, who believes the potential breakdown in continued care will be "devastating".

"If families can't be seen at the same practice, if people are punished then to join a waiting list because they have looked after their mouth, then where are they going to go? Because we know hospital waiting lists don't work," he said.The proposals are now part of a, open until 19 June, and in Cardiff people gave a mixed response to the plans when asked by BBC Wales.

Robyn Weldon, 21, said: "I've been going to my dentist since I was probably six so I guess that would be a bit sad if I can't go to him."I would say too that things haven't been going very well for the NHS so maybe this could be a good start to kind of make things easier for them and for us."

Paul McCarthy, 77, said he was unaware of the changes.

"I wouldn't be very happy about it either," he said.It was a lightbulb moment.

"I realised straight away what must have happened," he says. "The only explanation that made sense was that both babies got muddled up in hospital."Matthew and the two women managed to construct a brand new family tree based on all of his DNA matches.

"I love a puzzle and I love understanding the past," he says. "I'm quite obsessive anyway, so I got into trying to reverse engineer what had happened."Before World War Two, most babies in the UK were born at home, or in nursing homes, attended by midwives and the family doctor.