The decision carries real consequences: an implant placed into insufficient bone, or a bridge loaded with more chewing force than four implants can reliably distribute, can require corrective work years later that costs more than the original treatment. This article covers what each system involves structurally, what bone density and volume requirements each carries, which clinical profiles favor four implants over six, and where the cost and longevity trade-offs sit in practice. It also addresses the dental tourism angle, since a large proportion of patients making this decision are doing so with travel and a compressed timeline as part of the equation. The aim is to give prospective patients enough grounding to arrive at a specialist consultation with focused questions and make a choice based on clinical logic rather than price alone.
What the “All-on” System Actually Means

 
The phrase “All-on-4” was coined by Portuguese implantologist Paulo Malo in the late 1990s. The concept was to support a full arch of prosthetic teeth on the fewest implants that could reliably distribute bite load across the jaw. Four implants, two positioned vertically near the front of the jaw and two angled toward the rear at up to 45 degrees, gave surgeons a path forward even in patients who had lost significant bone… Read more...

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