Are full mouth implants better than All-on-4?

Neither option is universally better — the right choice depends on your individual clinical situation. Full mouth implants offer maximum support with each implant functioning independently, while All-on-4 provides a full-arch solution using fewer implants. Your dentist will assess your bone density, overall oral health, and treatment goals to recommend the most appropriate option.

Which lasts longer, All-on-4 or full mouth implants?

Both approaches use implant fixtures that can last 20–25+ years with proper care. The difference lies in the prosthetic components: individual crowns on full mouth implants typically last 15–25 years, while the full-arch prosthesis used in All-on-4 may need replacing or refitting over time. Longevity for both depends on oral hygiene, regular dental check-ups, and lifestyle factors.

How many implants are used in full mouth implants?

Full mouth implant treatment typically involves 6–10 or more implants per arch, depending on the individual case. The exact number is determined by your bone density, jaw anatomy, and the type of restoration planned. More implants provide greater support and load distribution across the jaw.

Is All-on-4 suitable for everyone?

All-on-4 is not suitable for all patients. It is designed specifically for full-arch replacement and is most appropriate for patients who are missing most or all teeth on a jaw. Candidacy depends on factors including bone density, gum health, and overall medical health. A thorough clinical assessment with 3D imaging is required to determine suitability.

Do full mouth implants require more surgery?

Full mouth implants typically involve more surgical procedures than All-on-4, as each implant is placed individually and the treatment may be staged over several appointments. Bone grafting may also be required if bone density is insufficient. All-on-4 generally involves a single surgical procedure per arch, though the complexity varies by case.

Can I get full mouth implants if I have bone loss?

It depends on the extent of bone loss. Full mouth implants require adequate bone density to support each individual fixture, which may necessitate bone grafting procedures before implant placement. All-on-4 may be more suitable for patients with moderate bone loss, as the angled posterior implants are designed to maximise contact with available bone.

How long does full mouth implant treatment take?

Full mouth implant treatment typically takes 6–12 months or longer, depending on the number of implants, whether bone grafting is needed, and the healing time required between stages. All-on-4 treatment is generally faster, with provisional teeth often fitted on the same day as surgery, though final restoration is completed after a healing period of several months.

Full Mouth Implants vs All-on-4: Which Is Right for You?

If you are considering replacing a full arch of teeth, you may be weighing up full mouth dental implants and All-on-4 treatment. Both are well-established approaches to full-arch restoration, but they differ in the number of implants used, treatment time, cost, and long-term flexibility.

Full mouth implants involve placing multiple individual implants across the jaw to support separate crowns or bridges. All-on-4 uses four strategically positioned implants to support an entire arch of fixed teeth. The most appropriate option depends on your bone density, oral health, and clinical assessment by your dentist.

This guide explains the key differences to help you understand your options. The right treatment will always depend on a thorough clinical examination and personalised treatment plan.

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Quick Comparison: Full Mouth Implants vs All-on-4

Feature	Full Mouth Implants	All-on-4
Purpose	Full-arch replacement using multiple individual implants for maximum support	Full-arch replacement using 4 strategically placed implants per jaw
Number of Implants	6–10 or more implants per arch	4 implants per arch
Treatment Approach	Individual implant fixtures each supporting a crown or short bridge	Fixed full-arch prosthesis attached to 4 angled implants
Stability and Function	Each implant functions independently — closely mimics natural teeth	Fixed, non-removable arch — strong chewing function restored
Aesthetic Result	Individual crowns closely match surrounding teeth	Full arch designed as a single prosthesis — natural-looking smile
Treatment Time	6–12 months+ including healing stages and bone grafting if needed	Provisional teeth often fitted same day — final restoration after healing
Cost (at Our Practice)	Higher overall — priced per implant, total depends on number placed	Pricing provided after clinical assessment — depends on individual case
Longevity	Implant fixtures: 25+ years — individual crowns: 15–25 years	Implant fixtures: 20+ years — prosthesis may need replacing over time
Suitability	Patients with adequate bone density across the jaw	Patients with some bone loss — angled implants can reduce need for grafting

Purpose

Full Mouth

Full-arch replacement using multiple individual implants for maximum support

All-on-4

Full-arch replacement using 4 strategically placed implants per jaw

Number of Implants

Full Mouth

6–10 or more implants per arch

All-on-4

4 implants per arch

Treatment Approach

Full Mouth

Individual implant fixtures each supporting a crown or short bridge

All-on-4

Fixed full-arch prosthesis attached to 4 angled implants

Stability and Function

Full Mouth

Each implant functions independently — closely mimics natural teeth

All-on-4

Fixed, non-removable arch — strong chewing function restored

Aesthetic Result

Full Mouth

Individual crowns closely match surrounding teeth

All-on-4

Full arch designed as a single prosthesis — natural-looking smile

Treatment Time

Full Mouth

6–12 months+ including healing stages and bone grafting if needed

All-on-4

Provisional teeth often fitted same day — final restoration after healing

Cost (at Our Practice)

Full Mouth

Higher overall — priced per implant, total depends on number placed

All-on-4

Pricing provided after clinical assessment — depends on individual case

Longevity

Full Mouth

Implant fixtures: 25+ years — individual crowns: 15–25 years

All-on-4

Implant fixtures: 20+ years — prosthesis may need replacing over time

Suitability

Full Mouth

Patients with adequate bone density across the jaw

All-on-4

Patients with some bone loss — angled implants can reduce need for grafting

What Are Full Mouth Implants?

Full mouth dental implant treatment involves placing multiple individual implants across the upper jaw, lower jaw, or both to support a complete set of replacement teeth. Typically, 6–10 or more implants are placed per arch, with each implant supporting an individual crown or a short bridge.

This approach provides maximum support and closely replicates the look, feel, and function of natural teeth. Each implant is independent, meaning if one restoration needs attention, it can be treated without affecting the others. Treatment is usually staged over several months to allow each implant to integrate with the jawbone.

Benefits

Maximum support with each implant functioning independently
Closely mimics the feel and function of natural teeth
Individual crowns can be replaced without disturbing others
Even load distribution across the entire jaw
Greater flexibility for future treatment adjustments
Long-established technique with extensive clinical evidence

Suitable Candidates

Full mouth implants are most suitable for patients with adequate bone density across the jaw, who are missing most or all of their teeth and want the most comprehensive implant-supported solution. A thorough clinical assessment including 3D imaging is required to determine candidacy.

What Is All-on-4?

All-on-4 dental implant treatment is a full-arch restoration technique that supports an entire set of replacement teeth using just four strategically placed implants per jaw. Two implants are positioned vertically at the front, and two are angled at the back to maximise contact with available bone.

This approach was designed to reduce the number of implants required for full-arch replacement and may be suitable for patients with some degree of bone loss who might otherwise need bone grafting. Provisional fixed teeth can often be fitted on the same day as surgery, with the final restoration completed after a healing period.

Benefits

Full arch of fixed teeth supported by only 4 implants
Provisional teeth can often be fitted on the same day
May be suitable for patients with some bone loss
Angled implants can reduce or avoid the need for grafting
Fewer surgical sites — single procedure per arch
Generally lower cost than placing multiple individual implants

Suitable Candidates

All-on-4 is designed for patients who are missing most or all teeth on one or both jaws and need a full-arch solution. It may be particularly suitable for patients with moderate bone loss who want to avoid bone grafting. Candidacy is determined through a clinical assessment with 3D imaging.

Key Differences Between Full Mouth Implants and All-on-4

Number of Implants

Full mouth implants use 6–10+ fixtures per arch for maximum individual support. All-on-4 uses exactly 4 implants per arch, with angled posterior fixtures to optimise bone contact.

Treatment Approach

Full mouth implants are placed individually over multiple stages with healing time between procedures. All-on-4 is typically completed in a single surgical procedure per arch with provisional teeth fitted the same day.

Stability and Load Distribution

Full mouth implants distribute forces across many independent fixtures, closely mimicking natural roots. All-on-4 distributes the load across 4 strategically positioned implants supporting a single prosthesis.

Bone Requirements

Full mouth implants require adequate bone density at each implant site, which may necessitate bone grafting. All-on-4 angled implants are designed to work with available bone, potentially avoiding the need for grafts.

Flexibility and Long-Term Options

With full mouth implants, each crown is independent — if one needs replacing, it can be treated individually. All-on-4 uses a single connected prosthesis, so damage may require attention to the entire unit.

Longevity

Both approaches use implant fixtures designed to last 20–25+ years. Individual crowns on full mouth implants typically last 15–25 years. The All-on-4 prosthesis may need refitting or replacing over time.

Aesthetic Outcome

Full mouth implants allow each crown to be individually crafted and matched. All-on-4 prostheses are designed as a complete arch for a natural, uniform smile — both achieve excellent aesthetic results.

Cost

Full mouth implants are typically more expensive overall due to the greater number of implants required. All-on-4 may offer a more cost-effective route to full-arch replacement by using fewer implants and fewer procedures.

Pros and Cons

Full Mouth Implants

Each implant stands independently — damage to one does not affect others

Individual crowns can be replaced without disturbing adjacent implants

Closely mimics the feel and function of natural teeth

Maximum support and load distribution across the jaw

Greater flexibility for future treatment adjustments

Long-established technique with extensive clinical evidence

Higher overall cost due to the number of implants required

Longer treatment timeline — often 6–12 months or more

May require bone grafting if bone density is insufficient

Multiple surgical procedures may be needed

Not suitable for patients with significant bone loss without grafting

All-on-4

Replaces a full arch of teeth with only 4 implants — fewer surgical sites

Provisional fixed teeth can often be fitted on the same day as surgery

May be suitable for patients with some degree of bone loss

Angled posterior implants can reduce or avoid the need for bone grafting

Single surgical procedure for a complete arch — fewer individual operations

Cost may be lower than placing multiple individual implants for a full arch

Only suitable for patients who need full-arch replacement — not for single teeth

The prosthesis is one connected piece — if damage occurs, the full unit may need repair

Requires careful long-term maintenance and professional cleaning

Not all patients are suitable — clinical assessment and imaging are required

Less flexibility for individual tooth adjustments compared to separate implants

Cost Comparison

Full-arch implant costs vary significantly based on the number of implants, bone grafting requirements, and the type of restoration. Below are our current prices for individual implants. Full-arch treatment pricing is provided after a clinical assessment.

Treatment	Our Price	Typical Lifespan
Single Dental Implant (inc. crown)	From £1,475 (member) / £2,950	25+ years (fixture) / 15–25 years (crown)
Full Mouth Implants (per arch)	Varies by case — depends on number of implants	25+ years (fixtures) / 15–25 years (crowns)
All-on-4 (per arch)	Pricing on consultation	20+ years (fixtures) / prosthesis may need replacing

Single Implant (inc. crown)

Cost: From £1,475 / £2,950Lasts: 25+ years (fixture)

Full Mouth Implants (per arch)

Cost: Varies by caseLasts: 25+ years (fixtures)

All-on-4 (per arch)

Cost: Pricing on consultationLasts: 20+ years (fixtures)

Full-arch implant treatment is a significant investment. Exact costs depend on your individual case and are provided after a clinical assessment. For more detail on individual implant pricing, see our guide to dental implant cost in London. We offer 0% interest finance options subject to status.

Which Option Is Best for You?

Best for Maximum Support

If you have adequate bone density and want the most comprehensive solution with each implant functioning independently, full mouth implants offer maximum support and flexibility.

Full Mouth Implants

Best for Fewer Implants

If you want to replace a full arch with fewer implants and a shorter surgical process, All-on-4 achieves full-arch restoration with just 4 implants per jaw.

All-on-4

Best for Long-Term Durability

If long-term flexibility and the ability to replace individual crowns independently is important, full mouth implants offer the most durable and adaptable solution.

Full Mouth Implants