The former Atomic Kitten star, 39, claimed that her late ex George Kay used to feed her sugar straight from the spoon.
Kerry opened up about five-year-old Dylan's trips to the dentist in her column for New magazine.
When George was here he'd eat a mound of sugar straight from the spoon - and he'd feed the same to DJ.View this post on Instagram
The reality star said: "The poor little baby had been suffering with some dental problems.
"She has terrible ulcers and cold sores around her mouth and she also needs to have two teeth extracted!
"When George was here he'd eat a mound of sugar straight from the spoon - and he'd feed the same to DJ.
"As a result it's rotten her back teeth. Getting her to brush them is a nightmare. It's been upsetting seeing her in such pain."
View this post on Instagram
Kerry and ex George welcomed Dylan-Jorge in 2014. The pair married in 2014 but they split in October 2015, after 11 months together.
Her spokesperson confirmed in a statement at the time: "It is with deep sadness that Kerry announces the end of her marriage to George Kay.
Kerry and George gave it another go but they split again in 2017, with a source saying at the time: "Tensions reached breaking point about a month ago and it all came to head when George told Kerry that he was tired of acting as a nanny to her kids.
She officially filed for divorce from George that year.Former rugby player George died in July of this year from a suspected drug overdose. Kerry is also mum to Molly, 18, Lilly-Sue, 16, Heidi, 12, and son Max, 11.
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