The only sure way to ensure your dentures stay in place is by dental implants. These are titanium plants that will be put into the root and eventually fuse with the bone. While implants can be put in place at any time, it is recommended this procedure be performed later in life. If you are experiencing severe bone and tissue loss, a realigning of dentures will be a temporary fix at best. Dental implants are the only way to ensure dentures fit properly and securely. It is not necessary that every missing tooth has a corresponding implant. Two are often all that are needed to provide stability for your dentures to remain fit and snug against your gums and jaw. Dental implants are more expensive than regular dentures.
Check with your dentist about the health of your mouth and map out a long-term strategy. If you require several refitting of dentures over the course of your life, you will find dental implants to be your cheapest option in the long run.