All-on-4 Implants in Foster City, CA: Materials & Timeline

All-on-4 replaces a full arch of missing or failing teeth with four to six implants supporting one fixed bridge, usually delivered in two stages: a temporary bridge placed the same day as surgery, and a final, more durable bridge after three to six months of healing. Recent research comparing bridge materials shows that zirconia-and-metal frameworks hold up noticeably better over time than the older acrylic-and-metal style — a distinction your dentist at Carlmont Dental Care now factors into treatment planning for patients traveling from Foster City and across San Mateo County.

The Surgical and Healing Timeline, Step by Step

Full-arch treatment follows a fairly predictable sequence, though the exact pace depends on bone quality, whether teeth need to be extracted first, and how many implants are placed.

• Consultation and imaging: A 3D CBCT scan maps bone volume and nerve position, which determines implant number, angle, and — importantly — how much vertical space will exist for the future bridge.
• Surgery day: Four to six implants are placed per arch, extractions are completed if needed, and a fixed temporary bridge is attached the same day, so patients don't leave without teeth.
• Healing (roughly three to six months): Implants fuse with the jawbone (osseointegration) while the temporary bridge is worn and adjusted as swelling resolves.
• Final bridge delivery: Once healing is confirmed, the temporary is replaced with the permanent bridge — and this is where the material decision actually pays off.

Many of the families who make the drive in for this initial consultation are weighing exactly this trade-off, since the imaging and planning appointment is the step that shapes everything downstream.

The Material Decision Made Before Surgery: Zirconia vs. Acrylic Hybrid

For years, the \"hybrid\" bridge — an acrylic tooth layer over a metal frame — was the default final restoration for All-on-4 cases. A 2026 analysis pooling data from twelve studies on full-arch bridges found that bridges combining metal with zirconia showed substantially less wear over time than metal-acrylic hybrids, along with a meaningfully lower risk of peri-implantitis (the gum and bone inflammation that can develop around implants) and less bone loss around the implants themselves. Implant survival itself was similar between the two bridge types — the difference shows up in how the visible bridge and surrounding tissue hold up, not in whether the implants stay anchored.

It's worth being precise about what this evidence does and doesn't show: the underlying studies were mostly observational, with only moderate-to-low certainty by the reviewers' own grading, so the results read as a strong early signal rather than settled proof. Larger, longer randomized trials are still needed. That said, a separate laboratory review of roughly 3,300 monolithic zirconia full-arch bridges tracked over five years found about 91.7% were still functioning without needing remake at the five-year mark. When bridges did fail, a cracked or fractured zirconia framework was the leading cause, and that was tied closely to insufficient vertical space between the jawbone and the bite — a planning detail decided at the surgical stage, before any bridge material is even fabricated.

What This Means for Implant Survival Itself

It helps to separate two different questions: will the implants themselves last, and will the bridge on top of them hold up cosmetically and mechanically? A 2025 study following 494 implants supporting 75 full-arch bridges, with an average follow-up well past seven years, found 99.6% of the implants were still functioning. Only three implants failed in the entire group, and all three were in patients who smoked. That pattern lines up with a broader trend in implant research: smoking is consistently the clearest modifiable factor tied to lower implant survival, more so than most other health variables studied. For most patients, the implants themselves prove remarkably durable; the material and design of the bridge is where the day-to-day differences in wear, staining, and gum health tend to show up.

Why Foster City Patients Plan Full-Arch Care in Belmont

Our office at 2100 Carlmont Drive in Belmont sits about fifteen to twenty minutes from most Foster City neighborhoods — typically west on Highway 92 to 101 south, exiting at Ralston Avenue. Patients from Marlin Cove, Schooner Bay, and Mariners Island regularly make this drive for full-arch consultations, in part because CBCT imaging and full-arch treatment planning benefit from an in-person exam rather than a phone estimate. If you're researching general dental options in the area first, our best dentist in Foster City, CA page is a useful starting point before diving into full-arch specifics.

We accept most major PPO plans — Delta Dental PPO, Aetna, MetLife, Cigna, Guardian, and several others — though not HMO/DMO plans, and our team includes Mandarin- and Spanish-speaking staff. Because full-arch treatment is a significant investment that varies by case complexity, number of implants, and bridge material, we provide a written estimate after the consultation rather than quoting a number sight unseen. In-house membership plans and 0% APR financing through CareCredit or Proceed Finance are both available to help spread out the cost.

Common questions about All-on-4 full-arch implants

Q: Will I be without teeth at any point during treatment?

No — a fixed temporary bridge is attached the same day implants are placed, so you leave surgery with a full set of teeth while healing takes place underneath.

Q: Is a zirconia bridge worth choosing over the traditional acrylic hybrid?

Current evidence favors zirconia-metal bridges for lower wear and lower peri-implantitis risk, though long-term data is still maturing. Your dentist will weigh this alongside your bite, budget, and available vertical space.

Q: Does smoking actually affect whether the implants survive?

Recent research found implant failure concentrated almost entirely among smokers, with survival otherwise exceeding 99%. If you smoke, expect a conversation about how it affects healing and long-term outcomes.

Q: How long does the whole process take?

Plan on three to six months from implant placement to final bridge delivery, following an initial consultation and imaging appointment.

Q: Do you see many patients from Foster City?

Yes — it's a short, familiar drive down 101 for many of our patients, and full-arch consultations from this area are common on our schedule.

If you're weighing All-on-4 options and want a treatment plan based on your own CBCT scan rather than general estimates, call Carlmont Dental Care at (650) 591-1984 or visit carlmontdentalcare.com to schedule a consultation. We welcome patients from Foster City and throughout San Mateo County.