All on 4 is a terrific option for people whose prognosis for their remaining teeth are quite hopeless. The process involves a visit to the surgeon and a bit of planning. The teeth are then removed, implants placed and new teeth are inserted 1-2 days later.
I know the before photo is quite horrific but it shows you
The neglect that some people leave their teeth in
The after photo shows you what great results can be achieved.