When traditional implants aren't possible due to severe bone loss, remote anchorage protocols — zygomatic implants, pterygoid implants, and the PATZI sequence — restore function and esthetics in patients other practices turn away. Performed by a board-certified oral and maxillofacial surgeon in Bonney Lake, Washington.
Patients with severe upper-jaw bone loss are often dismissed as "not candidates" for full-arch implants by general dentists and even some specialists. Remote anchorage protocols change that calculation.
Traditional dental implants — including those used in the standard All-on-4 protocol — must be anchored in the jawbone itself. When years of denture wear, periodontal disease, or previous tooth loss have resorbed that bone beyond a critical threshold, conventional implants are no longer viable.
For decades, the standard answer for patients in this situation was extensive bone grafting. Sinus lifts, ridge augmentation, autogenous grafts harvested from the hip or chin — often staged over 12 to 18 months before implants could even be placed. The result was a long, expensive, multi-surgery treatment journey with significant added complication risk and no guarantee that the regenerated bone would hold over time.
For many patients, this approach effectively meant "you're not a candidate." Those who couldn't tolerate the timeline, the additional surgeries, the cost, or the uncertainty were left with conventional dentures as their only option — which, given the underlying bone loss, often didn't even fit well.
Remote anchorage protocols solve this problem differently. Rather than rebuilding the bone that isn't there, they anchor implants in nearby bone that is. The zygomatic bone (cheekbone) and the pterygoid plate (a region of dense bone at the back of the upper jaw) provide structural anchorage points that the maxilla itself can no longer offer. Long titanium implants, designed for these specific anatomical locations, support a fixed full-arch prosthesis just as conventional implants would — without the years of grafting and healing.
This is not experimental work. Zygomatic implants have been performed since the 1990s. The published systematic reviews show 12-year cumulative survival rates of approximately 95% across thousands of cases.¹ The technique has matured significantly over three decades, with modern protocols like ZAGA (Zygomatic Anatomy-Guided Approach) and PATZI providing systematic, evidence-based decision-making rather than improvisation.
The maxillofacial skeleton contains several regions of dense bone that can support implants when the maxilla itself cannot. Each has specific clinical applications.
Developed by Brånemark in the 1990s, refined through the ZAGA approach (Aparicio, 2010). The standard remote anchorage option for patients with severe maxillary atrophy. Used in pairs (one per side) to support the posterior portion of a full-arch prosthesis, often combined with conventional anterior implants.
Pterygoid implants engage the dense bone at the back of the upper jaw, providing posterior support without requiring sinus lifts or extensive grafting. Often used in combination with anterior conventional implants in the PATZI protocol — particularly effective when posterior maxillary bone is atrophic but pterygoid bone density is preserved.
Trans-nasal implants are a more specialized remote anchorage option used when both conventional anterior implants and zygomatic implants are insufficient or anatomically impractical. They are part of the broader remote anchorage toolkit but used less frequently than zygomatic and pterygoid options.
The PATZI protocol prioritizes traditional implant placement over remote anchorage when conventional bone is available. Anterior and tilted implants are placed first in the algorithm — remote anchorage is added only when conventional implants alone are insufficient to support a complete arch.
PATZI — published in the International Journal of Oral and Maxillofacial Implants in 2023 — is a systematic intraoperative decision-making algorithm for full-arch maxillary reconstruction. It provides an ordered sequence: prioritize traditional implants, escalate to remote anchorage only when needed.
Pterygoid implants are placed first in the PATZI sequence. The posterior anchorage they provide eliminates the cantilever forces that compromise traditional posterior placement in atrophic maxillae. If pterygoid placement achieves adequate primary stability, the posterior support of the prosthesis is established without requiring zygomatic implants.
Standard implants are placed in the front of the upper jaw, where bone density is typically preserved even in atrophic patients. Anterior placement uses available native bone rather than escalating to remote anchorage prematurely. The PATZI algorithm specifically prioritizes traditional implants when they are anatomically viable.
Tilted implants — placed at angles up to 30°-45° — extend the posterior reach of conventional placement, similar to the All-on-4 angled posterior approach. This is the third escalation step when straight anterior placement and pterygoid anchorage haven't fully addressed the prosthetic plan.
Zygomatic implants are added when the previous steps haven't established adequate prosthetic support. The PATZI sequence treats zygomatics as the highest-escalation option rather than the default — a meaningful philosophical contrast to "zygomatic-first" approaches that some specialty practices use. The result: zygomatic implants are placed when truly required, not as a marketing feature.
The completed PATZI configuration combines whatever subset of the four placement types provides adequate prosthetic support. A typical case might use two pterygoid + four conventional anterior implants. A more atrophic case might use two pterygoid + two anterior + two zygomatic. Each case is unique and the configuration is determined intraoperatively based on bone availability and primary stability achieved.
The clinical value of PATZI is that it provides a predictable, systematized algorithm for cases that otherwise rely heavily on intraoperative improvisation. By specifying the order of escalation — and by prioritizing traditional implant placement when available — the protocol minimizes the use of remote anchorage to cases where it is genuinely needed.
For patients, this matters because conventional implants are technically simpler, faster to place, less expensive, and have a longer track record than zygomatic implants. A protocol that systematically prefers conventional placement when viable produces, on average, better outcomes than one that defaults to zygomatics for all atrophic cases. PATZI codifies this preference algorithmically.
When zygomatic implants are required, the surgical placement technique matters significantly. The Zygomatic Anatomy-Guided Approach (ZAGA), developed by Dr. Carlos Aparicio and published in 2010, has become the modern standard.
The original zygomatic implant technique — described by Brånemark in the 1990s — was an intrasinus approach, requiring opening a window into the maxillary sinus, elevating the sinus membrane, and routing the implant through the sinus space into the zygomatic bone. This worked, but introduced higher rates of post-operative sinusitis, soft tissue complications, and oroantral fistulas.
The ZAGA approach modifies the placement path based on each patient's specific anatomy. Rather than a single standardized surgical technique, ZAGA provides a classification system (ZAGA 0 through ZAGA 4) based on the curvature of the anterior maxillary wall and the degree of bone resorption. The placement path is selected from the classification — sometimes intrasinus, sometimes extrasinus, sometimes a hybrid extra-intrasinus path — to match the individual patient's bone topography.
Published comparative studies show that the anatomy-guided approach produces comparable long-term implant survival to the original technique with significantly lower complication rates: lower sinusitis incidence (4.4% vs 9.3%), lower soft tissue contamination (4.3% vs 7.5%), and lower oroantral fistula rates (0.6% vs 4.6%).² For the patient, this means the modern approach offers similar success with meaningfully fewer complications.
At Elite Oral Surgery, zygomatic placement follows the ZAGA framework. The placement path for each implant is determined preoperatively from 3D imaging and confirmed intraoperatively. This is not a single standardized technique applied to every patient — it is anatomy-specific surgical planning, executed under in-house IV sedation or general anesthesia.
Zygomatic implants have been studied longitudinally for over two decades. The modern systematic reviews aggregate data from thousands of implants across dozens of studies.
The most comprehensive systematic review of zygomatic implant outcomes — incorporating 68 studies, 4,556 implants, and 2,161 patients — reports a 12-year cumulative survival rate of 95.21%.¹ More recent meta-analysis of long-term studies (≥3 years follow-up) reports a mean implant survival of 96.2% at six years, with immediate-loading protocols showing statistically better outcomes than delayed loading (98.1% vs 95%).⁴
These survival rates are comparable to conventional dental implants. For patients in the candidate population — severely atrophic maxillae who would otherwise face extensive bone grafting or be considered ineligible for fixed implant therapy — these are exceptional outcomes.
The biological complication most frequently reported is sinusitis, with prevalence around 14% at five years per the meta-analysis.⁴ This is a meaningful complication that requires attention but is generally manageable with appropriate surgical technique (the ZAGA approach reduces this rate substantially), pre-operative sinus health evaluation, and post-operative monitoring.
Pterygoid implant outcomes in immediate-load full-arch protocols are similarly favorable. The Holtzclaw and Telles 2018 PFAST study (Pterygoid Fixated Arch Stabilization Technique) reported 100% pterygoid implant survival with follow-up ranging from 6 to 40 months in 16 patients.³ Larger 8-year retrospective datasets of pterygoid implants in full-arch immediate-load protocols continue to support high survival rates when proper insertion torque is achieved.
The patient seeking remote anchorage care has typically already done significant research. Many have been to multiple consultations elsewhere. Three profiles are particularly common.
Has been told by one or more practices — often general dentists or chain implant centers — that they aren't candidates for full-arch implants. Usually after long-term denture wear with significant bone resorption. Has been quoted extensive grafting or simply turned away. Often arrives discouraged. Most patients in this category are, in fact, candidates with remote anchorage protocols.
Had implants placed elsewhere that failed — sometimes years ago, sometimes recently. Usually has bone loss at the original sites that complicates re-placement. May have been told the failure was their fault (smoking, hygiene, etc.) without acknowledgment that placement decisions and protocol selection contributed. Wants a second opinion from someone with broader surgical scope.
Has been quoted full-arch implants but only after 12+ months of staged grafting procedures. Either can't tolerate the timeline, can't afford the additional cost, or doesn't want the additional surgical exposure. Wants to know whether there is a faster, less invasive path to fixed teeth. Remote anchorage often is that path.
Remote anchorage protocols — particularly zygomatic implants — carry a meaningfully higher complication risk profile than conventional implants. Intelligent decision-making requires understanding what those risks are.
Sinusitis — inflammation of the maxillary sinus — is the most common biological complication of zygomatic implants. It can develop in the months or years following placement, particularly when the implant path travels through or adjacent to the sinus cavity. Symptoms include facial pressure, nasal congestion, post-nasal drip, and altered taste or smell.
Most cases are managed medically with antibiotics, decongestants, and sinus-specific care. A minority of cases require surgical revision or, rarely, implant removal. The ZAGA approach — selecting the placement path based on each patient's anatomy — reduces sinusitis rates substantially compared to the original intrasinus technique.
Mitigation: ZAGA-based placement planning, pre-operative sinus health evaluation, post-operative sinus monitoring, prompt management of sinus-related symptoms.
Zygomatic implant failure rates are comparable to conventional implants long-term, but the failure pattern is different. Most zygomatic implant failures occur within the first six months post-placement, often related to insufficient primary stability or biological complications. Late failures are uncommon when the early healing period is completed successfully.
When a zygomatic implant fails, the surgical revision is meaningfully more complex than conventional implant replacement. Replacement zygomatic implants can typically be placed but require careful planning.
Mitigation: Confirmation of high primary stability (typically >40 Ncm) at placement, careful 3D-guided trajectory planning, post-operative protocols specific to zygomatic healing.
The transition between zygomatic implants and the oral soft tissue is a known site for complications including soft tissue dehiscence, recession, and bacterial colonization. The implant emergence point — typically at the junction of palatal and buccal mucosa — is a non-keratinized site that can be challenging to maintain hygienically.
Mitigation: Anatomy-guided emergence point selection, post-operative oral hygiene specific to zygomatic implant maintenance, regular professional follow-up.
The placement of zygomatic implants involves bone in proximity to the infraorbital nerve, which provides sensation to the upper lip, cheek, and lower eyelid region. Temporary altered sensation in this area is reported in a meaningful minority of cases, typically resolving within weeks to months. Permanent paresthesia is uncommon with proper surgical planning.
Mitigation: Pre-surgical 3D imaging to identify nerve location, surgical technique that maintains adequate safety margins from neurovascular structures.
An oroantral communication — an abnormal opening between the oral cavity and the maxillary sinus — can develop following zygomatic implant placement, particularly with the original intrasinus technique. This typically presents as fluid passage between mouth and nose, altered air movement, or chronic sinus issues. Most communications are surgically managed when identified, though large or persistent communications can require more involved revision.
Mitigation: ZAGA-based extrasinus placement when anatomically appropriate, careful sinus membrane management when intrasinus paths are required, routine post-operative imaging when symptoms warrant.
Zygomatic implant placement is a more involved surgical procedure than conventional implant placement. Surgical time is longer (typically 3.5+ hours per arch when zygomatics are involved), the surgical field is larger, and the procedure is typically performed under general anesthesia or deep IV sedation rather than oral sedation alone. Anesthesia risks scale with patient ASA classification.
Mitigation: Comprehensive pre-operative medical clearance, hospital-trained anesthesia administration, full monitoring during sedation/anesthesia, resuscitation protocols and equipment on-site.
All risks are reviewed in detail with each patient at consultation, prior to scheduling, and again as part of the formal informed consent process before surgery. Remote anchorage protocols carry meaningfully higher complication risk than conventional implants — patients should weigh this risk against the alternative of extensive bone grafting, prolonged treatment timelines, or remaining unable to receive fixed implant therapy.
Remote anchorage cases — those involving zygomatic implants, pterygoid implants, or the full PATZI sequence — are quoted individually at consultation rather than priced from the standard $15,000 per arch all-inclusive structure used for conventional All-on-4 and All-on-6 cases.
The reason is straightforward: surgical complexity, implant cost, surgical time, anesthesia requirements, and the configuration of remote anchorage components vary substantially case by case. A patient requiring two pterygoid implants plus four conventional implants has a very different cost profile than a patient requiring two zygomatic plus two pterygoid plus two anterior implants. Pricing remote anchorage cases at a uniform "all-inclusive" rate would either overcharge simpler cases or undercharge more complex ones. Neither serves patients well.
What we commit to:
Every patient receives a written treatment plan with itemized pricing at consultation, before any surgical date is scheduled. The quote includes the specific implant configuration recommended, the surgical fee, the anesthesia component, the prosthetic fabrication, and the follow-up care.
The quote is final. If we encounter intraoperative findings that require a meaningfully different approach than what was quoted, we stop and discuss before proceeding — we don't change the price in the chair after the surgery is underway. The PATZI algorithm helps minimize intraoperative surprises through systematic pre-operative planning.
Financing options apply. All five of our financing partners (Cherry, Proceed, Sunbit, LendingClub, CareCredit) are available for remote anchorage cases. HSA/FSA funds are eligible. Most patients spread the cost across 60-84 months.
Typical remote anchorage case pricing in Washington State ranges from $25,000-$60,000+ per arch depending on implant configuration. We aim to be the transparently-priced option in this market — the same philosophy applied to All-on-4 cases applies here, with the necessary adjustment for case-specific complexity.
The Full-Arch pillar page covers candidacy, materials, the standard All-on-4 and All-on-6 protocols, alternatives to full-arch implants, and the broader risk/outcome discussion. Remote anchorage is part of a larger continuum of options.
Probably yes. Most patients told they aren't candidates for full-arch implants by general dentists or chain implant centers were assessed against the criteria for conventional or All-on-4 implants — both of which require adequate bone in the maxilla itself. Zygomatic and pterygoid implants change this calculation entirely by anchoring in different bone.
The honest answer comes from 3D Cone Beam CT imaging at consultation, not from any prior practitioner's verbal assessment. If the zygomatic bone is intact (it almost always is, even in severe cases), zygomatic implants are typically possible. If pterygoid bone density is preserved, pterygoid implants are typically possible. The combination opens the candidacy window for the great majority of patients otherwise dismissed as ineligible.
They're different anchorage sites in different bone. Zygomatic implants are longer (30-55mm) and anchored in the zygomatic bone (cheekbone), providing posterior anchorage when the upper jaw lacks the bone for conventional posterior implants. Pterygoid implants are shorter (15-24mm) and anchored in the pterygoid plate at the back of the upper jaw — a region of dense bone that can support implants even when the maxilla itself is severely resorbed.
The two are often used together. A typical complex case might use two pterygoid implants posteriorly, two conventional implants anteriorly, and two zygomatic implants when neither pterygoid nor anterior placement alone provides adequate prosthetic support. The PATZI protocol systematically determines which combination is right for each specific case.
The surgery is more involved than conventional All-on-4 placement — longer surgical time (typically 3.5+ hours), larger surgical field, and typically performed under general anesthesia or deep IV sedation rather than lighter sedation. Recovery is also somewhat more complex, with more swelling and a slightly longer return-to-normal-activity timeline.
That said, most patients report that the recovery is meaningfully easier than the alternative — which is typically extensive bone grafting (often requiring tissue harvested from the hip or chin) followed by 6-12 months of healing and then a separate implant placement surgery. Remote anchorage typically completes the full surgical phase in a single procedure rather than three.
The largest published systematic review reports a 12-year cumulative survival rate of approximately 95% across thousands of zygomatic implants. This is comparable to conventional dental implants. Most failures occur within the first six months post-placement. Implants that integrate successfully tend to remain stable long-term, particularly with appropriate maintenance.
The titanium implants themselves are designed as a permanent solution. The zirconia prosthesis they support is engineered for decades of service. Both require six-month professional maintenance and diligent home hygiene.
PATZI — Pterygoid, Anterior, Tilted, Zygomatic Implants — is a systematic algorithmic approach to full-arch maxillary reconstruction published in the International Journal of Oral and Maxillofacial Implants in 2023. It provides an ordered escalation sequence: prioritize traditional implant placement when available, escalate to remote anchorage only when conventional approaches are inadequate.
For patients, PATZI matters because it produces, on average, better long-term outcomes than approaches that default to zygomatic implants for all atrophic cases. Conventional implants have a longer track record, simpler placement, and better outcomes when they can be used. A protocol that systematically prefers conventional placement when viable — and uses remote anchorage when truly needed — produces better cumulative results than one that uses zygomatics aggressively.
ZAGA — Zygomatic Anatomy-Guided Approach — was developed by Dr. Carlos Aparicio in 2010. It is a classification system (ZAGA 0 through 4) that determines the surgical placement path for zygomatic implants based on each patient's specific anterior maxillary wall anatomy and degree of bone resorption.
Compared to the original intrasinus surgical technique developed by Brånemark in the 1990s, ZAGA-based placement produces comparable implant survival with significantly lower complication rates — fewer cases of post-operative sinusitis, soft tissue contamination, and oroantral fistulas. It is the modern standard of care for zygomatic implant placement.
The surgical phase is typically completed in a single visit, with same-day provisional teeth seated. Final zirconia delivery follows the same 10-12 week timeline as conventional full-arch protocols.
This is meaningfully faster than the alternative, which is typically extensive bone grafting (3-6 months), followed by implant placement (additional 4-6 months for integration), followed by prosthetic delivery. Total timeline for grafting-based approaches commonly extends to 12-18 months. Remote anchorage compresses this to roughly 3 months.
Two practical differences. First, we follow the PATZI algorithm — meaning conventional implants are placed when viable, and remote anchorage is used when actually needed. Some practices market themselves as "zygomatic specialists" and default toward zygomatic placement even when the case might be appropriately handled with conventional or pterygoid approaches. PATZI's algorithmic preference for traditional placement when available produces, on average, better outcomes.
Second, Elite is independently owned, single-doctor, and surgery-focused. Remote anchorage cases require complex surgical planning and meaningful intraoperative judgment. Having the same surgeon plan, perform, and follow up the case — versus a corporate model with rotating providers — matters more for these complex cases than for routine ones.
Pricing for remote anchorage is quoted individually because case complexity varies significantly. The transparent-pricing philosophy that applies to standard All-on-4 cases applies here: written quotes at consultation, no surprises in the chair, financing options for spreading costs.
Dental insurance typically provides limited coverage for full-arch implant therapy in general, and remote anchorage cases follow the same pattern — usually a small portion attributed to extractions or the prosthesis component, capped at $1,000-$3,000 lifetime in most plans.
Medical insurance occasionally covers a portion of zygomatic implant cases when the underlying bone loss is the result of trauma, oral cancer treatment, or certain congenital conditions. We help patients understand exactly what their plan covers and provide all documentation needed for claims and reimbursement.
For most patients, the practical financing path involves a combination of HSA/FSA funds, our five financing partners, and any insurance contribution. Monthly payments for remote anchorage cases vary depending on total case cost and term selected.
Yes, zygomatic implants can be removed surgically if necessary, though removal is more complex than conventional implant removal due to the implant length and bone integration depth. Removal becomes necessary in a small minority of cases — typically due to severe biological complications, persistent infection, or mechanical failure.
When zygomatic implants must be removed, the patient is typically restored either with replacement zygomatic implants (after appropriate healing) or with a different prosthetic approach. The decision is made case by case based on the underlying problem and the patient's preferences. The bone of the zygoma generally remains structurally available even after removal of an integrated zygomatic implant.
3D Cone Beam imaging. A direct conversation with Dr. Volland about whether remote anchorage is the right answer for your case. A written treatment plan with itemized pricing. No obligation. No referral required for full-arch implant consultations.
Schedule Your ConsultationSurvival rate citations on this page reflect peer-reviewed longitudinal studies and systematic reviews of zygomatic and pterygoid implant outcomes. Patient outcomes vary by individual circumstance, anatomy, surgical technique, and adherence to maintenance protocols. Remote anchorage protocols are advanced surgical procedures that should only be performed by surgeons with specific training in these techniques.