I have an all on four denture on the lower jaw. Can it easily be changed to a snap in denture? What would be involved?

Yes it can be done, the solution is in the abutments, if you have the correct system of all on, 4 which is from NOBELBIOCARE, the multiunit need to be modified, if you have other brand you need to ask your doctor.

Acrylic dentures can be modified relatively easily and quickly.  But why would you want to do that ?  

Hi, thank you for your All-on-4 denture question. All-on-4 dentures are prosthesis that are retained in the mouth and normally are much more stable than a Snap in denture. Yes, you can convert from one to the other, but traditionally the All-on-4 prosthesis is better for you. It is a more retentive and stable prosthesis. I think that you should have a conversation with your dental specialist regarding why you want to switch over and weigh the pros and cons with both. Good luck!