Tooth decay

Today visited my mom and I am very happy to see her. It is surprise visit to see her and she is glad we come, we bring her to eat lunch at the restaurant nearby. She has to see dentist again, in fact she needs to see dentist every week to pluck a teeth. The tooth bottoms of her jaw many rotten and cannot be repair. I am sad to see her like this; she told me that dentist informs her cannot brush teeth. I don't know why, is it because she has to go pluck teeth again? There is drilling and digging if it is hard to remove sometimes even need to go operation for remove.

The root to her teeth is decay, there is many to tooth that need to be extract and remove.