Am I a Candidate for All-on-4?
 If you are missing most or all of an arch of teeth and have started researching All-on-4, the natural first question is whether you actually qualify for the procedure.
The short answer is that most adults who have lost most of an arch are candidates – All-on-4 was designed specifically to be broadly accessible, with an angled-implant technique developed in part so patients who could not get traditional individual implants can still have a fixed full-arch result. At South Valley Oral and Facial Surgery in San Jose, the longer answer is what we work out with you during a consultation.
This page is the candidacy side of All-on-4 within our broader dental implant program. Here we cover the candidate profile, the bone and health factors that affect candidacy, and when a different full-arch approach might fit you better. We handle the cost side of All-on-4 on a separate page, our All-on-4 cost breakdown, which most patients read after the candidacy question is settled.
On This Page
What Makes a Strong All-on-4 Candidate
 The strongest candidates for All-on-4 share a few clear traits. We confirm each of these during the consultation, and most adults who think they might be candidates turn out to be.
The first trait is the situation: missing most or all of the teeth in at least one arch, either through ongoing tooth loss or because the remaining teeth are failing and likely to need extraction anyway. The second is motivation: frustration with traditional dentures, or active effort to avoid moving into them, paired with wanting a tooth replacement that can be forgotten during meals and daily life. The third is anatomical: enough remaining bone in the front portion of the jaw to support the four angled implants the technique requires – our All-on-4 overview covers the placement in detail.
Bone Volume and Quality
Bone is the most common variable we evaluate. Traditional implant protocols typically need bone in the back of the jaw, where the upper sinus and lower nerve restrict placement. All-on-4 sidesteps that limitation by angling the back implants forward, anchoring them in the denser bone toward the front. This is why patients with bone loss in the back of the jaw are often candidates for All-on-4 even after being told they need bone grafting or sinus lift surgery for individual implants.
Severe bone loss across the entire arch can still rule out a standard All-on-4 placement. In those cases, zygomatic implants (anchored in the cheekbone instead of the jaw) or full mouth implants using a different placement pattern may be the better path. Both surgeons in our San Jose practice are trained to recognize when All-on-4 stops being the right answer and a different full-arch approach becomes the better one.
Health and Medical Considerations
All-on-4 is well tolerated by most healthy adults, and the candidacy bar for age and medical conditions is considerably lower than many patients expect. We routinely place dental implants for seniors in their seventies and eighties, and well-controlled diabetes, high blood pressure, and most cardiac conditions do not disqualify candidacy on their own – what matters is how well the condition is managed and what your overall surgical risk profile looks like.
Active smoking is the single biggest behavioral risk factor. Smoking does not automatically disqualify candidacy, but it raises the risk of early implant failure significantly. We have a frank conversation about this at the consultation and, in most cases, ask patients to stop or substantially reduce smoking for several weeks before and after surgery.
Some conditions warrant a more cautious evaluation: uncontrolled diabetes, recent radiation therapy to the head or neck, certain bone-density medications (especially IV bisphosphonates), and active periodontal disease elsewhere in the mouth. None of these are automatic no’s – they are simply reasons to plan more carefully and coordinate with your physician where needed.
When Another Implant Approach Might Be a Better Fit
All-on-4 is one of several full-arch options. Some patients are better served by full mouth implants using more than four implants per arch when extra stability is needed; others by zygomatic implants when the upper jaw has severe bone loss; and a smaller group by an implant-supported bridge if they are only missing a section of teeth rather than the full arch.
If you have been told elsewhere that you are not a candidate for full-arch implants, a second-opinion consultation is often worth scheduling. We see patients fairly often who were ruled out at offices that do not perform zygomatic implants or do not have the surgical depth to handle complex bone situations, and some of those patients turn out to be candidates for one approach or another.
Your All-on-4 Surgeons
Who is evaluating you matters as much as the criteria they are evaluating against. Full-arch cases are an area of specific focus for both surgeons at our practice, which shapes how thoroughly we work through your candidacy.
Dr. Joseph McMurray, DMD, MBA, FACOMS, founded our Gilroy office in 1997 and is board-certified in Oral and Maxillofacial Surgery. He has over 35 years of surgical experience, including 11 years with the U.S. Navy as fleet oral surgeon aboard the USS Nimitz and as clinical department head at the U.S. Naval Hospital in Naples, Italy.
Dr. Arian Chehrehsa, DDS, ABOMS, NDBA, is dual board-certified in both Oral and Maxillofacial Surgery and Anesthesiology, and leads regional study clubs on full-arch implant surgery. Full mouth dental implant treatment is one of his specific areas of focus – the same study-club work that keeps him current on the technique also informs how he reads a candidacy case. He trained at NYU College of Dentistry and completed his residency at Montefiore Medical Center in New York.
Two board-certified oral surgeons evaluating your case together is uncommon in our region, and it is part of why we are well-positioned to handle borderline candidacy cases.
How We Evaluate Candidacy at Your Consultation
 We determine candidacy through a combination of imaging, clinical exam, and medical history. The consultation is the only way to give you a real answer.
The visit starts with a 3D cone-beam CT scan. The scan shows us bone volume, density, and location with the precision needed to plan implant placement – this is where most of the candidacy question is actually answered. We can see whether the anterior bone is sufficient for the four planned implants, whether the back of the jaw has the kind of resorption All-on-4 is built to work around, and whether your sinuses (in the upper jaw) leave room for a standard placement or push us toward a different approach.
We also do a clinical oral exam: gum health, the condition of any remaining teeth, bite relationships, and any signs of infection or pathology we would need to address before surgery. If you have remaining teeth that are failing, we discuss whether to plan extractions as part of the All-on-4 procedure or as a separate step.
Your medical history matters here too. We review medications, medical conditions, prior surgeries, and any specific risk factors we have already touched on. For patients with complex medical pictures, we may coordinate with your physician before recommending a treatment plan.
By the end of the consultation, you will have a clear answer about candidacy: yes you are a candidate for standard All-on-4, you are a candidate with a specific qualifier (a sinus lift, a particular sedation choice, a coordinated medical clearance), or another approach – zygomatic implants, full mouth implants, or in some cases an implant-supported bridge – would suit your situation better. A consultation takes about 60 to 90 minutes.
What Strong Candidates Gain from All-on-4
For patients who turn out to be candidates, All-on-4 represents a meaningful shift away from the alternatives most of them are considering.
The most immediate gain is fixed teeth that stay in place. Unlike traditional dentures, All-on-4 prostheses are screwed into the implants and do not come out at night, do not require adhesives, and do not slip during eating or speaking. The patients we treat in San Jose who arrive after years of denture frustration tell us this is the single biggest change.
Bone preservation is the second gain. Implants stimulate the bone in the area where they are placed, which slows the bone loss that comes with missing teeth and unaddressed denture use. Both surgeons review imaging on their All-on-4 patients during long-term follow-up, and the bone-preservation contrast with denture-only patients is one of the most consistent differences we see.
Durability that matches the cost is the third gain. How long the All-on-4 result lasts depends on prosthesis material, oral hygiene, and individual healing, but well-maintained All-on-4 cases routinely deliver decades of function. Some of the All-on-4 cases at our practice have crossed the fifteen-year mark and are still functioning well.
The fourth is candidacy itself – that a procedure delivering all of this exists at a bar most adults can clear. Patients told fifteen or twenty years ago that implants were not for them sometimes come back to us today and turn out to be candidates, partly because the All-on-4 technique has expanded who qualifies, and partly because the 3D imaging we use at consultation reveals options older imaging would have missed.
Why Patients Trust Us for All-on-4 Evaluation
A candidacy evaluation is only as accurate as the surgeon reading it. For All-on-4 specifically, three things make our practice well-suited to that read.
Two board-certified oral and maxillofacial surgeons evaluating your case. Most full-arch practices operate with a single surgeon and an associate. At South Valley Oral and Facial Surgery, you are treated by a surgeon at every step, and complex candidacy cases benefit from two qualified opinions when the situation warrants.
Surgical depth across the full spectrum of full-arch options. Because we perform zygomatic implants and full mouth implant cases in addition to standard All-on-4, our candidacy evaluation does not stop at “yes” or “no” for All-on-4 – we tell you what does fit if All-on-4 does not, and we can perform that procedure too.
Anesthesia administered by a surgeon. Dr. Chehrehsa is dual board-certified in anesthesiology, so when sedation choice comes up as part of the candidacy conversation, you are talking with the person who will actually administer the anesthesia, not coordinating across two separately scheduled providers.
The same approach applies at our San Jose office, our Gilroy office for patients in the South County, and our Los Banos office for those in the Central Valley.
Cost and Insurance for All-on-4
Once we confirm candidacy, the next question patients usually have is cost. Our All-on-4 cost breakdown covers the full picture – what affects the price, what is typically bundled into the fee, and how insurance and financing fit in.
The short version: dental insurance usually contributes a partial benefit toward components rather than covering the whole procedure, and we work with established financing partners (including CareCredit) so most patients split the cost into monthly payments. Call us at 408-479-9449 if you want to verify your benefits before scheduling.
Schedule Your All-on-4 Consultation
The fastest way to find out if you are a candidate is a consultation with imaging and a clinical exam. Call our San Jose office at 408-479-9449 or request an appointment online. We are at 5595 Winfield Blvd Suite 202 in San Jose, CA 95123.
Frequently Asked Questions
Am I too old for All-on-4?
For most healthy adults, no. We routinely place implants in patients in their seventies and eighties, and age on its own is not a disqualifier – what matters more is overall medical health, bone volume, and the ability to tolerate the surgical visit. Patients in this age range are often among the strongest candidates at our practice because they are also the most likely to have already lost significant tooth structure.
Will significant bone loss in my jaw disqualify me from All-on-4?
Not usually. All-on-4 was specifically developed for patients with bone loss in the back of the jaw – the angled implant placement was designed to use the bone you already have in the front of the arch. Patients told they cannot get traditional individual implants because of bone loss are often candidates for All-on-4. Severe bone loss across the entire arch is a different situation; in those cases, zygomatic implants are often the better path.
Can I get All-on-4 if I have diabetes or high blood pressure?
Usually yes, if the condition is well-controlled. Diabetes raises the risk of healing complications, but well-managed diabetes does not disqualify candidacy on its own – we coordinate with your physician where appropriate. Controlled high blood pressure also rarely changes candidacy. We review your full medical history and current medications at the consultation to give you a specific answer.
Does smoking automatically disqualify me from All-on-4?
No, but it is the single largest behavioral risk factor for implant failure, and the candidacy conversation will include this. We typically ask patients to stop or substantially reduce smoking for several weeks before and after surgery; patients who can commit to that window usually have outcomes comparable to non-smokers. We do not refuse to treat smokers who cannot commit to that change – we simply make sure they understand the elevated failure risk before proceeding.
Can I get All-on-4 if I still have some teeth?
Yes, and many of our All-on-4 patients in San Jose come to us with remaining teeth that are failing rather than already missing. In those cases, we extract the failing teeth as part of the same surgical visit. If your remaining teeth are healthy and stable, you are likely a better candidate for implant-supported bridges or individual implants than for All-on-4.
I was told I am not a candidate for full-arch implants elsewhere – should I get a second opinion?
Yes, especially if the practice that turned you down does not perform zygomatic implants or does not have surgical depth in full-arch cases. We schedule second-opinion consultations specifically for patients in this situation. Some patients who were initially told they did not qualify turn out to be candidates with one approach or another when a surgeon experienced in full-arch cases reviews their imaging.
What are my options if All-on-4 is not the right fit?
There are several. Full mouth implants use more than four implants per arch when extra stability is needed. Zygomatic implants anchor in the cheekbone instead of the jaw and are often the answer for severe upper-jaw bone loss. Implant-supported bridges work when you are missing a section of teeth rather than the full arch. And mini implants to stabilize a denture are sometimes the right fit when keeping a removable prosthesis suits the patient better. We sort through which one fits you at the consultation. |
