All-on-4 Full-Arch Implants for Redwood Shores Patients

All-on-4 replaces an entire arch of missing or failing teeth using just four dental implants that support a fixed, non-removable bridge — often loaded with a temporary set of teeth the same day as surgery. Long-term studies now following these cases anywhere from 5 to nearly 20 years report implant survival in the mid-90s percent range, with stable bone around the implants and no meaningful difference between the angled (tilted) and straight implants. That makes the four-implant, immediate-load approach a predictable long-term option for replacing a full set of teeth, and it is one of the more common consultations we see from Redwood Shores families driving down to Belmont.

What All-on-4 Actually Is

The name describes the technique: four implants placed into the jaw to anchor a full arch of replacement teeth. Two implants go in straight toward the front of the jaw, and two are tilted at an angle toward the back. That tilt is the clever part — it lets the dentist anchor into denser, more available bone and often avoids the need for bone grafting or sinus procedures that older approaches required. Because the four implants are engineered to work as a stable unit, many patients leave with a fixed temporary bridge the same day, then return later for a final, custom prosthesis once healing is complete.

This is different from traditional dentures. All-on-4 teeth are screwed onto implants and do not come out at night, do not rock while eating, and do not rely on adhesive. For patients who have struggled with loose lower dentures or a mouthful of failing teeth, that stability is usually the whole point.

What the Long-Term Evidence Shows

The reassuring news is that this is no longer a new or unproven idea. Longitudinal research tracking All-on-4 cases over many years consistently reports high implant survival. One large study following patients for 3 to 17 years found implant-level survival around 97 percent in the upper jaw and roughly 99 percent in the lower jaw. Even studies reaching out to 20-plus years report survival around 90 percent — remarkable durability for anything that lives in the mouth. At the one-year mark, implant survival exceeds 98 percent in both jaws.

A few honest nuances matter here:

• Tilted implants hold up as well as straight ones. Multiple studies show comparable bone stability and survival regardless of the angle, so the angled back implants are not a weak point.
• The upper jaw trends slightly below the lower. The maxilla (upper) has softer bone, so its survival numbers run a little lower and most failures, when they happen, tend to occur early rather than years down the road.
• Survival is not the same as "success." An implant staying in the bone is one measure; long-term success also means healthy gum tissue, minimal bone loss, comfortable function, and a prosthesis that is maintained over time. Some data on the very longest follow-ups is still maturing.

We walk through all of this honestly at consultations — including with patients coming from the Marina and Sandpiper neighborhoods who want to understand the real evidence, not a sales pitch, before committing to full-arch treatment.

Is All-on-4 Right for You?

Good candidates are usually people who have lost most or all of the teeth in an arch, have failing teeth that cannot be saved, or wear a denture they dislike. A few factors influence long-term outcomes. Smoking measurably lowers implant survival in the research, so we talk candidly about it. Grinding and clenching (bruxism) raise the risk of mechanical complications like a chipped or fractured bridge, so a nightguard is often part of the plan. Adequate bone and general health also factor in, which is why a proper exam and 3D imaging come first. For readers near the Shorebird area or the Bridge Parkway condo communities weighing their options, this is a genuine advantage of living close to a full-service practice — you can find the best dentist in Redwood Shores, CA for your situation without a long commute, since Carlmont Dental Care is only about 10 to 12 minutes south on Highway 101 in Belmont.

Living With Full-Arch Implants

All-on-4 teeth are low-maintenance compared with dentures, but they are not maintenance-free. Cleaning under the bridge daily matters, and professional maintenance visits — often somewhere in the range of every few months depending on your individual risk — keep the tissue healthy and catch small issues early. Over many years, the replacement teeth themselves can show wear and are designed to be serviced or replaced, while the implants underneath continue doing their job. Think of it less as a one-time procedure and more as a durable system you partner with your dental team to look after.

Common questions about All-on-4 implants

Q: Will I leave with teeth the same day?

In many cases, yes. All-on-4 is designed for immediate loading, meaning a fixed temporary bridge is often placed the day of surgery. The final, custom prosthesis comes after healing. Your dentist at Carlmont Dental Care will confirm whether same-day teeth are appropriate for your bone and bite.

Q: How long do the implants last?

Long-term studies report survival in the mid-90s percent range over 5 to 18-plus years, with the lower jaw trending slightly higher than the upper. That is durable, but outcomes depend on health, smoking, grinding habits, and regular maintenance.

Q: Is it painful?

The procedure is done under anesthesia and sedation options, and most patients report the recovery is more manageable than they expected. Some swelling and soreness for a few days is normal.

Q: What does it cost?

Full-arch treatment is an investment that varies with your specific case — number of arches, imaging, materials, and lab work all factor in, and Bay Area pricing reflects senior clinicians and quality materials. We provide a written estimate after your consultation, and we offer in-house membership plans starting at $30/month plus 0% APR financing through CareCredit and Proceed Finance to make it manageable.

Q: Do you take my insurance?

We accept most PPO plans. Implant coverage varies widely, so our team will review your benefits and explain what applies before you decide anything.

If you are considering replacing a full set of teeth, the best next step is a conversation. Serving Redwood Shores and nearby San Mateo County communities, our team at Carlmont Dental Care in Belmont will review your situation, take the imaging needed, and lay out honest options and a written estimate — no pressure. Call us at (650) 591-1984 or visit carlmontdentalcare.com to schedule a consultation.