‘ALL on 4’ is a porcelain bridge screwed to 4 or more implants. When a patient has lost (or will soon be losing) all teeth in an arch the best alternative is a fixed alternative on implants.
With the placement of 4 or more implants, it is possible to create a prosthesis that is secure, and functions like natural teeth.
An implant bridge replaces a denture as the replacement option. Patients report better taste and feel because there is no need for the palate to be plastic. Also, security of the denture is no longer a problem since the Implant Bridge does not come out.
Only your dentist may remove them, but these prostheses need maintenance and cleaning just like natural teeth.
This is might be a more expensive option but the final result is well worth the cost. You will be secure and be able to chew normal food again without worry. Imagine having your teeth back!