Hello, it is generally best to ask your mother to have her teeth cleaned before repair. Your mother will usually have gum recession at this age. Generally, bleeding gums means poor oral hygiene and irritants. If you take good periodontal care before restoration, the restoration will last longer.

Porcelain teeth are very different. The difference is that the inner crown is different. Also, which part of the tooth is your mother missing? The front teeth can be made of all-ceramics. Very beautiful. For the back teeth, they can be made of titanium, porcelain, or precious metal. Relatively hard. It's hard to say about the price, as consumption varies from place to place.

The best way is to take your mother to a local regular dental hospital for consultation.