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Article · Ghatkopar East, Mumbai

All-on-4, All-on-6 or All-on-X: how full-arch implants are actually chosen

The number in the name is not a menu you pick from. It is an outcome of what your jaw can support.

Treatment room at the clinic in Ghatkopar East, Mumbai

All-on-4, All-on-6 and All-on-X describe how many implants carry a full arch of teeth. The right number is decided per person after a thorough investigation of bone volume and quality — not chosen from a price list. The superstructure can be fixed or removable, and that too is individual.

What full-arch implant treatment is

When all the teeth in a jaw are missing, or need to be removed, a small number of implants can carry a complete arch of teeth. This is full mouth reconstruction, and it is the largest treatment in implant dentistry.

The options include All-on-4, All-on-6, All-on-X, Teeth in 72 hours, hybrids and overdentures. Patients often arrive having researched one of them specifically. That is a reasonable starting point, but it is worth understanding what actually determines the answer.

Why the number varies

More implants distribute chewing force across more anchor points. Fewer implants require each one to carry more load, and demand very precise positioning to work.

What decides it is your jaw: how much bone there is, where it is, its quality, and where the anatomical structures sit — the sinus above the upper molars, the nerve running through the lower jaw. Two people with identical-looking mouths can need different solutions.

This is why the treatment plan, the number of implants and the type of superstructure are decided after a thorough investigation and a discussion with you, and not before.

Fixed or removable

Fixed

The teeth are attached to the implants and stay in the mouth. You clean around them; they do not come out. Closest to natural teeth in feel.

Overdenture

A denture that clips onto implants. It is removed for cleaning, but unlike a conventional denture it does not move while you eat and does not rely on suction or adhesive. Fewer implants are typically needed, which matters where bone is limited.

Neither is superior in the abstract. They suit different jaws, different budgets and different people.

The short version
  • The number of implants follows from your anatomy, not from a package
  • Fixed and removable are both legitimate outcomes
  • 3D imaging comes before any of this is decided
  • Insufficient bone is usually solvable with grafting or a sinus lift
  • “I was told I don’t have enough bone for a full arch”

    Common, and usually not the end of the conversation. Bone grafting, sinus lift and soft-tissue augmentation rebuild the site so implants can be placed safely, and our centre specialises in these advanced procedures. It is covered in more detail here.

    If you are travelling for this

    Full-arch treatment is the most sequencing-sensitive work in dentistry, because implants need time to fuse with bone between stages. That does not make it impossible to do around travel — it makes planning the whole point. Send your imaging before you book flights, not after.

    Common questions

    What is the difference between All-on-4 and All-on-6?

    The number of implants carrying the arch. More implants spread the load across more anchor points; fewer require greater precision. The right number depends on your bone volume, quality and anatomy.

    Are the teeth fixed or removable?

    Both are options. Fixed teeth stay in the mouth. An overdenture clips onto implants and comes out for cleaning but does not move while eating. The choice is individual.

    Can I have full-arch implants with limited bone?

    Often yes. Bone grafting, sinus lift and soft-tissue augmentation rebuild the site first. Our centre specialises in these advanced procedures.

    Not sure if this is what you need?

    Send us a message. If it is something simpler, we will say so.

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