That is such a odd thing to hear about in a cat! Never heard that before.

BUT, now get this... My daughter Rie (age 40ish) that posts on here from time to time, never lost her baby teeth and neither did her twin brother . He died at the age of 17 with his baby teeth. Rie still has hers but had those lumineers (?) put on them. She never did grow in her permanent teeth and I reckon she will die with her baby teeth. Never heard of it in a human until then and now in a cat!