
Two Full Arch Approaches, One Goal
Both All-on-4 and All-on-X give you a complete, fixed set of teeth supported by dental implants. The difference is how many implants are used and why.
At Fusion Dental Implants, this is one of the most common questions we answer. Here is a clear breakdown.
How All-on-4 Works
All-on-4 supports a full arch of teeth on exactly four implants placed strategically in the jawbone.
- Two vertical implants at the front, where bone density is highest
- Two angled implants at the back, typically at 30 to 45 degrees
The angled placement maximizes contact with available bone and avoids anatomical structures like sinus cavities or nerve canals. This often eliminates the need for bone grafting.
The result is a stable, fixed arch that can often be loaded with temporary teeth the same day as surgery.
How All-on-X Works
All-on-X is not a single technique. It is a category. The "X" represents the number of implants used β typically 4, 5, or 6 β tailored to each patient's anatomy and clinical needs.
All-on-6 is the most common variant. Six implants provide wider support distribution across the arch, which is particularly beneficial for:
- Upper jaw restorations where bone is naturally less dense
- Patients with significant bone loss
- Larger jaw structures that benefit from wider implant spacing
Side-by-Side Comparison
| Feature | All-on-4 | All-on-X (e.g., All-on-6) | |---|---|---| | Number of implants | 4 | 5, 6, or more | | Bone grafting needed | Rarely | Occasionally | | Best for | Most patients with adequate bone | Patients needing extra support | | Upper jaw suitability | Good | Excellent | | Cost | Lower | Slightly higher | | Stability | Excellent | Enhanced |
Which One Is Better?
Neither is universally better. The right choice depends entirely on your individual anatomy, bone density, and clinical needs.
A thorough exam and 3D cone beam CT scan are essential before any recommendation. At Fusion Dental Implants, we never push one option over another based on anything other than clinical needs.
Best Candidates for All-on-4
All-on-4 works especially well for patients who:
- Have adequate bone volume in the front of the jaw
- Want to avoid bone grafting
- Need the most cost-effective full arch solution
- Are restoring the lower arch, which tends to have denser bone
Best Candidates for All-on-X
Additional implants may be more appropriate for patients who:
- Are restoring the upper arch
- Have significant bone loss affecting the front jaw
- Have a larger jaw structure
- Want maximum long-term stability
- Have higher bite force needs
Same-Day Teeth with Both Options
Both All-on-4 and All-on-X can typically be loaded with temporary teeth on surgery day. This means you leave the office with a full set of functional teeth.
After healing β during which the implants fuse with your jawbone through osseointegration β your final permanent prosthetic is fabricated and attached.
Cost in the Sacramento Area
In the greater Sacramento region, pricing generally falls in these ranges:
- All-on-4: $18,000 β $25,000 per arch
- All-on-6 / All-on-X: $22,000 β $32,000 per arch
Your actual cost depends on whether extractions are needed, imaging fees, and the type of prosthetic selected. Fusion Dental Implants provides a transparent, itemized treatment plan at your consultation.
Frequently Asked Questions
What is the difference between All-on-4 and All-on-6?
All-on-4 uses four implants to support a full arch. All-on-6 uses six implants, providing additional support β particularly beneficial for upper arch restorations or patients with lower bone density.
Is All-on-X the same as All-on-4?
All-on-X is an umbrella term for full arch solutions using a variable number of implants. All-on-4 is one type. The "X" indicates the number can be customized to the patient.
How long do All-on-4 implants last?
With proper care, the implant posts are designed to last a lifetime. The prosthetic teeth may require replacement after 10 to 15 years.
Schedule your free consultation today
About Fusion Dental Implants: We specialize in advanced dental implant solutions with locations in Roseville and El Dorado Hills, California.
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