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Advanced and Complex Implant Surgery

The cases other offices send to us, or that patients bring us directly after being told no elsewhere. Bone-deficient rehabilitation, revision of failed implants, zygomatic surgery, and medically complex care.

What “complex” means in our work

Not difficult for the sake of it. Different in kind.

A “complex” case in our practice is one where the answer isn’t a standard implant in standard bone under standard conditions. It might be a patient whose upper jaw has resorbed past the point where conventional implants are anchorable. It might be someone whose first implant treatment failed and who needs revision before any further work makes sense. It might be a patient with a medical history that means the surgical plan has to be designed around their medicine, not in spite of it.

We’ve placed thousands of implants over the last 15 years. Complex work is what we do day-to-day, not an add-on, not a referral we send out. It’s our practice.

We don’t do cleanings, veneers, braces, root canals, or general dentistry. If those are what you need, we’ll point you to a good dental home for them. What we do is implant surgery and full-arch rehabilitation, including the cases other offices won’t or can’t take on.

Categories

Four kinds of complex.

Bone-deficient cases

Patients whose available bone won’t support standard implants without intervention. The options are grafting (which we do), alternative anchorage like zygomatic implants (which we do), or a combination. A CBCT scan and a surgical opinion are the only honest way to know which fits a given case.

Revision cases

Failed implants, ill-fitting prostheses, prior plans that came up short. Revision is almost always more involved than starting fresh, but for many patients it’s the only path forward. The first step is the same as any new case: imaging, an honest assessment, a written plan.

Zygomatic candidates

A specific subset of bone-deficient patients for whom grafting won’t deliver a reliable foundation in a reasonable timeframe. Zygomatic implants anchor into the cheekbone instead of the upper jaw, often allowing fixed teeth in cases that would otherwise require years of staged grafting.

Medically complex patients

Anticoagulation, bisphosphonate or denosumab history, diabetes, cardiac history, immunosuppression. None of these rule out implant treatment on their own. They change the plan. Dr. Metwally and the anesthesiologist on your case coordinate the work around the medical picture, not the other way around.

Why this work needs a focused practice

You can’t do complex implant work part-time.

Complex implant surgery is volume-dependent. The judgment calls that matter most, when to graft versus when to go zygomatic, how to revise a failed implant, when to stage a sinus lift versus combine it with placement, are calls that improve with repetition. A surgeon who places five implants a month and an implant-focused team placing thousands of cases don’t make these calls the same way.

The same holds for prosthetics. The lab decisions on a complex full-arch case, bite, shade, occlusal scheme, material, benefit from designers who’ve done it hundreds of times. That’s why we keep the lab in the same building as the surgical suite, and why the people designing your final teeth see the case from day one.

Sedation and anesthesia follow the same logic. Long, complex cases done under sedation require an anesthesiologist who knows the case, the environment, and the patient’s history before the first incision. See sedation & anesthesia for how we deliver this at our facility, included with treatment.

Cases

Representative outcomes.

Selected anonymized case studies will appear here once photography is complete: full arches restored after years of denture wear, zygomatic cases delivered the same day, and revisions of failed prior implant work. Until then, the homepage carries one representative case slider; ask for more during your consultation.

Complex cases: what patients ask first

What makes a case "complex" in your work?

Three categories cover most of what we mean. Bone-deficient cases: patients with insufficient bone to support standard implants without grafting or alternative anchorage like zygomatic. Revision cases: failed implants, ill-fitting prostheses, or prior treatment plans that came up short. And medically complex cases: patients with bisphosphonate history, anticoagulation requirements, diabetes, cardiac history, or other conditions that mean the surgery needs to be planned around the medicine, not in spite of it. None of these are unusual in our practice; they're a meaningful share of our weekly case load.

I was told elsewhere I'm not a candidate for implants. Should I get a second opinion?

Yes. "Not a candidate" is almost always shorthand for "not a candidate with the techniques this practice routinely performs." A surgeon who does standard implants every day will accurately tell you when standard implants aren't possible, but they may not be in a position to offer zygomatic implants, advanced grafting, or the kind of planned reconstruction that opens up the case. Bring your imaging. The answer at a second consultation is often different.

Do you handle failed implant work from other offices?

Yes. Revision is a meaningful part of our practice. The first step is the same as any other consultation: imaging, an honest assessment of what's salvageable, and a written plan. Sometimes the implant can stay and the prosthesis needs to be redesigned. Sometimes the implant has failed and needs removal and a re-plan. Sometimes the original plan was geometrically wrong and a different approach is needed. We'll tell you which it is before you commit.

How is surgery handled for medically complex patients?

Carefully and in coordination with your physician where appropriate. The most common considerations we plan around are anticoagulation (when to hold, when not to), bisphosphonate or denosumab history, diabetes (HbA1c targets and timing), cardiac history, and immunosuppression. Sedation and anesthesia decisions are made in coordination with the anesthesiologist assigned to your case, based on the full medical picture. None of this is a reason on its own to avoid implant treatment. It just changes the plan.

How long do complex cases take from start to finish?

Months, not weeks. Be honest about this. A typical complex full-arch with grafting runs 6–9 months from first consultation to final prosthesis. Zygomatic cases can be faster on the surgical side because grafting is avoided. Revision timelines depend on what's being revised: a prosthetic redesign can be a few weeks; a full implant removal, healing, regrafting, and re-placement is closer to a year. We map the timeline at the consultation, with milestones, so you can plan around it.

Will I be sedated for complex surgery?

For most complex cases, yes: usually IV sedation or general anesthesia, depending on length and complexity. Both are administered at our facility by anesthesiologists who specialize in outpatient surgical sedation. No separate facility, no anesthesiologist fee on top. See our sedation page for the options.

Can general dentists refer patients to you for complex cases?

Yes. Referrals are welcome and we work closely with referring offices on continuing patient care. Patients can also book directly without a referral; most of our consultations come that way. Whichever path a patient takes, the workflow is the same: imaging, surgical opinion, written plan, and a clear set of next steps.

Request Consultation

Bring us the case
everyone else said no to.

Most of our consultations come from patients who have been told they can't have implants. We see those cases every week. Book a private consultation with Dr. Metwally. We'll review your imaging and give you a real plan.

Address2804 Victoria Park Ave #14
North York, ON M2J 4A8
HoursMon – Fri · 8:00 AM – 6:00 PM
Phone(416) 499-7878