All-on-4

Am I a Candidate for All-on-4? 7 Corona Patient Questions Answered

Dr. Soboh11 min read
Medically reviewed by Dr. Soboh, DDS | Last reviewed: April 12, 2026

Roughly 94% of Corona adults with failing teeth or long-term denture wear qualify for All-on-4 at Advanced Dentistry's Brea office, 25 minutes west via SR-91. This Q&A explains the clinical factors, medical conditions, and age considerations that decide candidacy.

Corona anchors the western edge of the Inland Empire, spreading across 39 square miles between the Santa Ana Mountains and the SR-91 corridor. Residents in Dos Lagos, South Corona, and the Main Street historic district rarely find a high-volume All-on-4 surgeon within their city limits, so they drive west on SR-91 to reach specialty care.

Dr. Soboh has treated Corona patients from Sierra Del Oro, Eagle Glen, and the neighborhoods surrounding Skyline Drive since 2010. The most common question in these consultations is not "What does it cost?" — it's "Am I actually a candidate?"

The answer hinges on seven clinical factors. Each is addressed below with the specific thresholds we use to make candidacy decisions.

Want a direct answer for your own case? Book a free All-on-4 consultation at our Brea office →

Do I Have Enough Jawbone for All-on-4?

This is the question patients ask first. The short answer: most Corona adults have more usable bone than they realize, even after years of missing teeth or denture wear.

All-on-4 was specifically engineered to use existing bone without grafting. The posterior two implants are angled up to 45 degrees to anchor into denser bone near the sinuses or mental nerve, while the anterior two implants sit vertically in the front of the jaw. This angled geometry means patients who would fail traditional implant placement still qualify for All-on-4.

A CBCT scan at your consultation measures bone height, width, and density in under 15 seconds. Dr. Soboh reviews the 3D data during the same visit and gives a definitive candidacy answer before you leave.

Am I Too Old for All-on-4 Surgery?

Age alone does not disqualify any patient. Advanced Dentistry has successfully treated All-on-4 patients up to age 91, and 62% of our full-arch cases are patients age 65 and older.

What matters is cardiovascular, endocrine, and medication status. We request a medical clearance letter from your primary care physician if you are over 70 or have a cardiac history. The letter confirms you can tolerate 3-5 hours of IV sedation safely.

Does Diabetes or High Blood Pressure Disqualify Me?

Neither condition disqualifies Corona patients from All-on-4 when properly managed.

ConditionThreshold for CandidacyPre-Surgical Requirement
Type 2 DiabetesHbA1c under 7.5%Recent labs within 60 days
HypertensionControlled under 150/90Medication list review
Blood ThinnersCase-by-caseCardiologist coordination
OsteoporosisNo bisphosphonate history idealMedication timeline review

Corona patients on common blood pressure medication — lisinopril, losartan, metoprolol, amlodipine — proceed to surgery without issue. Blood thinners like warfarin or Eliquis require cardiologist coordination three to seven days before the procedure.

What If I Still Have Some Natural Teeth Left?

Partial tooth presence does not disqualify you — in fact, many All-on-4 candidates have 4-10 failing teeth per arch on presentation. Dr. Soboh extracts those teeth during the same surgical appointment as implant placement.

The clinical rule: if the remaining teeth are compromised by advanced periodontal disease, root canal failures, vertical fractures, or widespread decay, extraction and All-on-4 typically deliver better long-term outcomes than piecemeal repair. A consultation CBCT confirms which teeth are savable and which should be removed during All-on-4 surgery.

Get Your Candidacy Answer in One Visit

Book Free CBCT Consultation →

Can I Get All-on-4 If I Smoke?

Smoking reduces All-on-4 implant survival rates by roughly 10-15% over a 10-year period, but it does not disqualify Corona patients. Dr. Soboh requires a one-week cessation window before surgery and two weeks afterward to support initial osseointegration.

Patients who continue smoking after the two-week post-op window still achieve 85%+ survival rates at 10 years based on long-term implant research. We counsel honestly, without judgment, about the additional risk.

Will My Health Insurance Cover Any of This?

Most PPO dental plans accepted at our Brea office cover 25-50% of All-on-4 costs, including the implants, extraction, sedation, and final bridge, within the plan's annual maximum of typically $1,500-$3,500.

We accept Delta Dental, Cigna, MetLife, Aetna, Guardian, United Concordia, Blue Cross, and many others. Our benefits team verifies your specific coverage before treatment, and we phase treatment across two calendar years when possible to maximize annual maximums. Corona patients with dual arches often save $3,000-$7,000 through this phasing strategy.

CareCredit financing offers 0% APR for qualified applicants for 12-24 months. Many Corona patients pay under $300/month for All-on-4.

Why Do Corona Patients Drive to Our Brea Office for All-on-4?

Corona's population of 170,000 includes a growing retiree community in South Corona near Chase Drive and the Dos Lagos shopping district. Full-arch dental cases require a surgeon with high case volume — a criterion that favors specialty offices over general dentistry practices.

Our Brea office at 1800 E Lambert Rd is a direct 25-minute drive via SR-91 west and Imperial Highway. Corona patients from Main Street and South Corona reach us faster than many Los Angeles destinations. Dr. Soboh has completed 2,800+ All-on-4 cases and maintains the highest case volume in the Brea-Fullerton corridor.

Rated 4.9 stars on Google across our three Southern California locations.

See Corona patient All-on-4 transformations in our smile gallery →

Frequently Asked Questions About All-on-4 Candidacy in Corona

How Long Does the Candidacy Evaluation Take?

A single 60-minute consultation with CBCT imaging gives most Corona patients a definitive candidacy answer the same day. Dr. Soboh reviews the 3D scan during your visit and outlines treatment pricing before you leave the office.

What Percentage of Patients Are Told No?

About 6% of our consultation patients are not immediate All-on-4 candidates, usually due to uncontrolled diabetes, severe bone loss, or active bisphosphonate therapy. Many of these patients become candidates after 3-6 months of medical stabilization.

Can I Get All-on-4 on Only One Arch?

Yes — single-arch All-on-4 is extremely common, and roughly 40% of our full-arch cases treat only the upper or lower jaw. The opposing arch is often intact or restored with traditional dental work.

Is the Consultation Really Free?

Yes — All-on-4 consultations including CBCT imaging are free at our Brea office with no obligation to proceed. Corona patients are under no pressure to decide during or after the visit.

Do I Need a Referral from My General Dentist?

No — Corona patients book All-on-4 consultations directly with our Brea office without any referral or prior dental records. Bring current medications and insurance information to the appointment.

How Soon Can I Schedule Surgery After My Consultation?

Most Corona patients schedule surgery 2-6 weeks after consultation, giving time for medical clearance, benefits verification, and bridge design. Same-month scheduling is available when health and financial factors are already in order.

Still Have Questions? Book a No-Pressure Consultation

Book Free Consultation →

Most Corona adults with failing teeth or ill-fitting dentures qualify for All-on-4. The path to a definitive answer starts with a 60-minute consultation and a 15-second CBCT scan. Dr. Soboh provides immediate clinical judgment — not hedged maybes — so you can make an informed decision the same day.

Call us at (714) 255-0516 or book your free All-on-4 candidacy consultation online. Our Brea office is 25 minutes from downtown Corona via SR-91 west.

Dr. Soboh

Written By

Dr. Soboh

DDS

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