Can I get implants after having wore dentures for several years?

The fact that you have been wearing dentures doesn't mean that you don't have good bone for dental implants, or the All on 4 type of procedure. This type of procedure is designed to treat patients like you. The bone surrounding the teeth that you lost, although no longer there, doesn't mean that the jaw bone that remains is not conducive to a successful outcome. You may actually be an ideal candidate, but, further studies including a CT scan need to take place. 

Bone loss is progressive, so be sure to have a CT scan taken to make sure your bone structure is enough to have implants placed. 

Yes, you can still have dental implants even if you have worn dentures for a long time. However, dentures can often cause your bone to shrink. If you are planning to have dental implants placed, it is best to be evaluated sooner rather than later for dental implants. If your jawbone has become thin after many years of denture wearing, you might have to have some "grafting" procedures done in order to make your bone wide enough for dental implants. 

The more you wait the more you lose bone and complicate the situation , CT scan will be the judge of how simple or complex your case will be , but with your description I think it is possible to have implants and may be full arch fixed bridge as well. Depends on CT scan analysis  the need of graft or no graft will play a role in the length of the procedure. 

Without a CT scan I can't give you a definitive answer, but in most cases it will be possible for you to get implants in the future. However, the longer you wait, the surgery can and will most likely be more complicated possibly requiring multiple surgeries that include extensive bone grafting procedures. 
As other doctors have answered previously, without a tooth or implant, you will continually lose bone over time. If you have a good amount of bone now, you may be okay to wait 1-3 years. However, if you are already deficient in bone quantity, then you may need to address the area quickly to avoid more complex surgery in the future. 
I highly recommend if you are interested in dental implants either now or in the future, that you visit a dentist and have a CT scan completed. This way, at least you have all the information that you need to make an informed decision. 

Must take into account that over time the costs increase, not taking the decision in time results in loss of bone, does not mean that temporary use of a denture due to issues of function: mastication, talk and of course social, have A lot of loss but it should be in time.I would recommend using it in the time of integration of the implants this takes a maximum of 6 months and thus would avoid the loss of bone.
best wishes

Hi and good luck! 
When you loose teeth to either a periodontal condition or decay you will continue to loose bone over time. This loss of bone is going to on the long run affect your ability to keep the dentures in place. They will certainly become uncomfortable!.You should consider doing implants at the same time , maybe doing an All on Four procedure were you get a hybrid denture supported by implants immediately. We routinely do thus for our patients that have no other alternative , but to remove there teeth. I hope this helps you, good luck.

Hi:There is a high possiblility you can get implants now.  The main qualification for implant is quality and quantitiy of the bone.  Best,Dr. Maddahi

 The truth is the longer that you wait to have implants placed the more bone will be lost. This bone remodeling process continues until the implants are placed as they help stabilize and stimulate your bone cells.
Grafting can be done later but is far less predictable and even grafting requires some existing bone in order for it to be successful. My suggestion is that if you are thinking about dental implants you have them done sooner rather than later.

Implants need bone, and a LOT of it, in order to work.  Bone will shrink over time, and more rapidly if wearing dentures.  It won't mean implants won't be an option later, but the cost will be more due to the bone grafting needed.