All-on-4 Implants for Hillsborough: A Fixed Alternative to Dentures

All-on-4 is a full-arch tooth-replacement approach that anchors a complete fixed bridge on just four implants per jaw, often loaded the same day. Long-term studies now following patients from five to as long as 18 years report implant survival in the mid-90-percent range with modest bone loss, and one-year survival above 98 percent in both the upper and lower jaw. For many people, that makes it a stable, non-removable alternative to traditional dentures — though the data still shows upper-jaw results trending slightly below the lower jaw, which is worth understanding before you commit.

What All-on-4 actually is

If you have lost most or all of the teeth in one or both arches — or you are facing that — All-on-4 replaces the entire arch with a single fixed bridge supported by four titanium implants. Two are placed upright near the front, and two are tilted at the back. That tilt is the clever part: angling the rear implants lets your dentist anchor into denser bone and often avoids the bone grafting that other implant plans require. In many cases a temporary fixed set of teeth goes in the same day, with the final bridge fitted after healing.

The appeal for Hillsborough patients we meet is simple. Unlike a removable denture, the bridge does not come out at night, does not rock while you eat, and does not rely on adhesive. It is cared for much like natural teeth, with some added attention around the gum line.

What the long-term research shows

This is where the evidence has genuinely matured. Studies tracking All-on-4 rehabilitations over many years consistently report implant survival in the mid-90s percent, with low marginal bone loss around the implants. Within the first year, implant-level survival tops 98 percent in both arches. A few key points we walk Hillsborough families through:

• Tilted implants perform like straight ones. Across multiple studies, the angled rear implants show survival and bone-loss numbers comparable to upright implants — the differences are not clinically meaningful. That is what makes the four-implant design dependable.
• The lower jaw tends to do slightly better. Long-term data puts mandibular (lower) implant survival near 98–99 percent, with the maxilla (upper jaw) trending a bit lower, often in the mid-90s. Most upper-jaw failures, when they happen, occur in the first couple of years.
• Survival is not the whole story. An implant can survive while still needing maintenance. Researchers separate raw survival from true success, which also accounts for stable gum tissue and the bridge itself. Minor mechanical issues — wear on the teeth of the bridge, the occasional repair — are part of long-term ownership, and they are manageable.

Honest framing matters here. The long-term picture is strong and still maturing, and results depend heavily on your bone, your habits, and upkeep. It is a well-documented approach, not a guarantee. Whether you are researching from Lower Hillsborough or the Crystal Springs-adjacent neighborhoods, the same evidence applies — and the same need for a personalized assessment.

All-on-4 versus a traditional denture

A conventional full denture is removable, rests on the gums, and can shift or loosen over time as the jawbone beneath it shrinks. All-on-4 is fixed, transfers chewing force into the bone through the implants, and helps preserve that bone. For biting strength, speech confidence, and simply not thinking about your teeth, the fixed option is what draws most people to ask about it.

That said, dentures still have a role — they cost less up front and require no surgery. The right choice depends on your health, bone volume, and goals. If you are comparing options and want an evidence-based read from a best dentist in Hillsborough, CA search, a consultation is the only way to know which path fits your mouth. We are about 12 to 15 minutes south of Hillsborough in Belmont, an easy drive down Highway 101 or El Camino Real for North Hillsborough residents.

Is All-on-4 right for you?

Good candidates generally have enough bone to anchor four implants, healthy gums, and are ready to maintain the result. Factors your dentist at Carlmont Dental Care will weigh include smoking, which lowers success rates, and grinding or clenching, which is the single biggest driver of mechanical problems — a nightguard is often part of the plan. A cone-beam 3D scan maps your bone before anything is decided.

Common questions about All-on-4 in Hillsborough

Q: How long do All-on-4 implants last?

Long-term studies report implant survival in the mid-90-percent range out to 5–18 years, with the fixed bridge sometimes needing repair or refresh sooner than the implants themselves. Good hygiene and regular check-ups strongly influence longevity.

Q: Do I really only need four implants per jaw?

For many people, yes — the tilted-implant design is specifically engineered so four can support a full arch. Some cases benefit from additional implants, which is determined by your bone and bite.

Q: Is the upper jaw less predictable than the lower?

Slightly. Upper-jaw bone is softer, so survival numbers trend a bit lower and most early failures occur there. It is still a well-supported treatment; it simply calls for careful planning.

Q: What does All-on-4 cost, and can it be financed?

Investment varies with case complexity, materials, and whether one or both arches are treated, and we sit on the higher end of Bay Area pricing. We provide a written estimate after your consultation and offer 0% APR financing through CareCredit and Proceed Finance, plus in-house membership plans starting at $30 per month.

Talk it through with our team

If you are weighing a fixed full-arch solution against dentures, the best next step is a conversation and a 3D scan so you get answers specific to you — not averages. Serving patients in Hillsborough and nearby San Mateo County communities, Carlmont Dental Care is at 2100 Carlmont Drive, Suite 8 in Belmont. Call (650) 591-1984 or visit carlmontdentalcare.com to schedule a consultation. Mandarin- and Spanish-speaking team members are available.