At age 34 no less. I know very few people who have dentures at 34, let alone have dentures that have gotten to the point of needing to be removed.
1)Some dental work includes pins that are inserted into bone.
2)Chemo can affect your teeth and cause bone loss.
3)Certain diseases cause bone loss in the jaw.
4)My grandfather lost all his teeth in a car accident.
5)Some people have really soft teeth and no matter how well you take care of them they have problems. I am one of those. Mr G has really strong teeth and at age 60 has never had a filling. I would kill for one tooth without a filling.
In other words, there are many many many reasons why she could have dental problems, none of which has anything to do with the subject at hand.