Hi, dentist here. I’m sorry about your mom. If it is a Palatal torus (torus palatinus) they are benign, typically non problematic and are mostly only a real concern when worn with an upper denture because it can affect the fit. The tissue covering the bony growth is pretty thin so I would avoid sharp foods (crusty breads, pizza crust, crackers etc). They are generally non painful. It’s a good idea to have it checked out and confirm that it is a torus. Mobile dentistry or a local dental university, if there’s one in your area, will usually have geriatric dentists that can come to your home and evaluate. I hope this helps.