All-on-4 and All-on-6 are full-arch implant approaches used to support a fixed set of replacement teeth for patients missing most or all teeth in an arch. The numbers refer to the number of implants used to support the prosthesis.
These treatments require careful planning of bone, bite, smile line, speech, hygiene access, and long-term maintenance. Not every patient is suitable, and the final plan depends on clinical assessment and imaging.