All-on-4 vs All-on-6 Dental Implants

All-on-4 and All-on-6 are implant-supported treatment approaches that may be considered when replacing multiple missing teeth or a full arch of teeth.

Although the two approaches share similarities, they differ in the number and positioning of implants used. Which approach may be appropriate depends on your individual oral health, available bone, remaining teeth, medical history and treatment needs.

In this article, we explain some of the similarities and differences between All-on-4 and All-on-6 dental implant treatment. Your dentist will need to assess your individual circumstances before recommending a treatment option.

Key Takeaways

• All-on-4 and All-on-6 are implant-supported options for replacing multiple missing teeth or a full arch of teeth.

• All-on-4 generally uses four dental implants to support a fixed prosthesis.

• All-on-6 generally uses six dental implants.

• Bone grafting may be required with either approach depending on the amount and location of available jawbone.

• Treatment costs may differ depending on the number of implants, type of prosthesis and any additional procedures required.

• Additional implants may affect implant positioning, treatment planning and cleaning requirements.

• Different types of fixed prostheses may be available for All-on-4 and All-on-6 treatment.

• Suitability needs to be assessed individually by a dentist.

What Are All-on-4 and All-on-6 Dental Implants?

All-on-4 dental implant treatment generally involves placing four dental implants in the upper or lower jaw to support a fixed prosthesis that replaces multiple teeth.

All-on-6 follows a similar concept but generally uses six implants to support the prosthesis.

With All-on-4, implant positioning is planned according to the patient’s anatomy and available bone. In some cases, posterior implants may be placed at an angle as part of the treatment approach.

Whether bone grafting is required cannot be determined solely by choosing All-on-4 or All-on-6. Your dentist will assess factors such as your bone volume, bone quality and the proposed position of the implants.

For patients with multiple missing or significantly compromised teeth, implant-supported treatment may be one option considered instead of replacing each tooth with an individual implant.

With All-on-6 treatment, six dental implants are generally positioned within the jaw to support a fixed prosthesis.

Your dentist will assess your mouth and jaw before determining whether four implants, six implants or another treatment approach may be suitable.

Similarities Between All-on-4 and All-on-6

Both May Be Used for Full-Arch Tooth Replacement

All-on-4 and All-on-6 may be considered when replacing multiple missing teeth or a full upper or lower arch.

Both Use Dental Implants to Support a Prosthesis

Both approaches use dental implants placed within the jawbone to support a fixed dental prosthesis.

Unlike a conventional removable denture, an implant-supported fixed prosthesis is attached to the implants and is generally removed only by a dental professional when required.

Both Require Individual Treatment Planning

Both treatments require assessment and planning before implant placement.

The implants require time to integrate with the surrounding bone. Depending on the clinical situation, a temporary prosthesis may sometimes be provided during the healing period before the final prosthesis is fitted.

Treatment stages and healing times vary between patients.

All-on-4 and All-on-6 Differences

Number of Implants

The primary difference is the number of dental implants used.

All-on-4 generally uses four implants, while All-on-6 generally uses six implants to support a prosthesis within an arch.

The appropriate number of implants depends on your bone volume and quality, your bite, your oral health and your treatment plan. The table below is a general guide only.

 

Feature	All-on-4	All-on-6
Number of Implants	4	6
Cost	Generally less expensive	Generally more expensive
Stability	Stable	Stable, with two extra implants sharing the load
Treatment time	Often shorter, varies by case	Often longer, varies by case
Jawbone density	May be considered where bone volume is limited	Generally needs more available bone
Maintenance	Requires regular maintenance	Requires less maintenance
Weight distribution	Distributes weight evenly	Distributes weight evenly

 

All-on-4 vs All-on-6 Dental Implants Cost in Australia

The cost of All-on-4 and All-on-6 dental implant treatment in Australia varies between patients and clinics. Fees may depend on factors such as the number of implants required, the type of prosthesis, diagnostic imaging, extractions, bone grafting, treatment complexity and laboratory costs.

All-on-6 treatment may cost more than All-on-4 in some cases because it generally involves two additional implants. However, the total cost should be confirmed after a clinical assessment and personalised treatment plan.

If pricing is displayed on a clinic website, patients should check what is included and whether additional procedures or ongoing maintenance may involve extra costs.

Frequently Asked Questions

1. Which Is Better: All-on-4 or All-on-6?

There is no single option that is better for every patient. The suitability of All-on-4 dental implants or All-on-6 depends on factors such as your available bone, oral health, remaining teeth, bite and treatment needs.

Your dentist can assess these factors and explain the potential benefits, risks and limitations of each option before recommending a suitable treatment approach.

2. How Long Do All-on-6 Implants Last?

The lifespan of All-on-6 implants varies between patients. Factors such as oral hygiene, smoking, general health, biting forces, implant position and regular dental maintenance can influence how implants and the prosthesis perform over time.

Repairs, maintenance or replacement of prosthetic components may also be required.

3. Do All-on-4 Implants Look and Feel Like Natural Teeth?

All-on-4 implants support a fixed prosthesis designed to replace missing teeth and restore dental function.

The appearance and feel of the prosthesis vary between patients and depend on factors such as its design, materials, implant position and individual anatomy. An implant-supported prosthesis should not be expected to feel exactly the same as natural teeth.

4. Is Getting All-on-4 Painful?

Anaesthesia is generally used during implant placement to help manage discomfort during the procedure.

Some patients may experience pain, swelling, bruising or tenderness during recovery. The type and level of discomfort vary between individuals and depend on the extent of treatment performed.

Your dentist can explain what to expect and discuss available pain-management options before treatment.

5. How Long Do All-on-4 Teeth Last?

The lifespan of All-on-4 implants and the attached prosthesis varies between patients.

Factors such as oral hygiene, smoking, medical conditions, bite, implant health, prosthetic materials and regular maintenance can influence treatment longevity. The prosthesis or individual components may require adjustment, repair or replacement over time.

Conclusion

All-on-4 and All-on-6 are implant-supported treatment options that may be considered for patients with multiple missing teeth or a full arch of missing teeth.

The most appropriate option depends on your individual circumstances rather than the number of implants or cost alone. Your dentist will consider factors such as your oral health, available bone, remaining teeth, medical history, treatment goals and budget before discussing suitable options.

As with any dental implant treatment, All-on-4 and All-on-6 involve potential benefits, limitations and risks. Individual treatment outcomes and recovery experiences vary.

If you are considering implant-supported tooth replacement, a clinical assessment and appropriate diagnostic imaging can help determine which treatment options may be suitable for you.