What is the difference between a all on four dental implants and denture? Does the all on four show the gum line when you smile?

The All On 4 is an hybrid fixed bridge that gets screwed over the dental implants previously placed (it could be an All on 4 or All on 6) It has no pink gum, because it rests over your own gums while they are screwed over your implants. Depends as well of the patient's oral condition if they will be needing the Snap On Dentures or the All On 4. Examination is required. Aesthetically, both look good. It depends in the patient's oral condition and preference on which one you chose. Hope this helps.

Dentures are removable teeth and made of acrylic( plastic type ). All-on-4 dental implant technique gives fixed teeth, with out any acrylic flanges, can even replace lost gums and bone to an extend. The final prosthesis (Fixed teeth) of All-on-4 can give Zirconium (metal free) crown and bridges.

If the All-on-4 case is properly planned, the gumline should NOT be showing. It is important to address this issue before the dental implants are placed. When a patient presents to my office with a "gummy" smile and asks for an All-on-4, I have to do some modification to the underlying bone during the All-on-4 procedure in order to properly prepare it so that the gumline does not show.