Dear friend you have not provided any medical history of your grandma. first and foremost an dentist needs to thoroughly evaluated the conditions of her mouth and denture. physiological bone remodelling happens at an rapid phase due to loss of teeth so need to evaluate if bone augmentation is feasible provided shez not diabetic and with cardiac history. faulty dentures can be readjusted to some extent. rebasing dentures are temporary solutions. if denture is excessively loose its advisable to get new pair of dentures. If patient is affordable can go for implant supported dentures provided patient maintains good medical fittness. completely evaluate her medical fittness before proceding. Osteoporosis can be an big factor in determining failure of implants.

usually over period of time denture becomes loose in mouth due to constant bone loss ..if your grandmother's denture is very loose you can go for new one or else you can use denture adhesive powder which is available in medical stores. it will hold denture in its position for few hours..

Dentures need to remade every few years to best suit the remolding gums and underlying bone. Fixed options even in denture wearers is possible today with a couple of implants after evaluation. They cost more but improve immensely the quality of life.

it depends on how old is t denture r t make of t denture. there will b constant bone loss in mouth because of which she might have lose dentures