Most people are not aware that the term ‘All-on-4®’ is not a stock product or service. The final product can differ significantly from one clinic or franchise to the next and from one country to the next. ‘All-on-4®’ is a term used to describe a surgical protocol where a bridge is supported by only 4 implants, and all this is achieved in only one day. Some centres skip steps- like only using one bridge or use vastly inferior materials- like a ceramic bridge without the supporting titanium bar. It is in your best interest to be informed about exactly what you are getting before you make such a big commitment.