When the Bone Cannot Hold a Post, a Custom Framework Sits on Top
Subperiosteal implants are fundamentally different from standard endosseous implants. Instead of a post drilled into the bone, a custom metal framework is fabricated to sit on top of the jawbone, beneath the periosteum (the membrane covering the bone). Posts extend through the gum tissue from this framework to support a dental prosthesis above. The framework is held in place by the bone growing around and encapsulating it over time.
This approach was developed decades ago, before modern bone grafting techniques made it possible to augment deficient ridges for conventional implant placement. Today, subperiosteal implants are rarely used because bone grafting, zygomatic implants, and pterygoid implants can address virtually every case of severe bone loss with better-documented long-term outcomes. However, for a small subset of patients — particularly those who have failed bone grafting, cannot tolerate additional surgical procedures, or have medical conditions that preclude grafting — subperiosteal implants remain a viable last-resort option.
Modern subperiosteal implants are designed using CBCT data and manufactured with CAD/CAM technology, a significant improvement over the older technique that required a direct bone impression through open surgery. Dr. Walied Eldomiaty evaluates whether a subperiosteal approach makes clinical sense for your specific situation and discusses all alternatives before recommending this pathway. It is not a first-line treatment, but when indicated, it can provide a functional result for patients who would otherwise have no implant options.
Serving Beaverton, Aloha, Hillsboro & Washington County
Aloha Dental Specialty Center is located at 18455 SW Alexander St, Suite B, in Beaverton, Or Oregon. We serve patients from across the Tualatin Valley and greater Portland metro, including Aloha, Hillsboro, Tigard, Lake Oswego, and Tualatin. Our Beaverton office is a 5-minute drive from Aloha, 10 minutes from Hillsboro, and 15 minutes from Tigard via SW 185th Avenue.
-
📍
Intel Campuses (Ronler Acres & Jones Farm)
10 to 15 minutes via NW 185th Ave. We accommodate the schedules of tech professionals who need efficient, high-quality specialty care.
-
📍
Nike World Headquarters
About 8 minutes via SW Baseline Rd. We frequently see patients from the Nike campus for surgical and implant procedures with sedation options.
-
📍
Streets of Tanasbourne & Orenco Station
Easily accessible via US-26 and NW 185th. Local general dentists in these communities regularly refer patients to us for specialty procedures.
Why Local Dentists Refer to Us
We work as a trusted partner to general dentists throughout the Tualatin Valley. When cases require CBCT-guided planning, IV sedation, bone grafting, or other advanced procedures, local providers refer to Dr. Ostovar for his experience with implant procedures and predictable results.
We handle the procedures within our scope and coordinate closely with your general dentist for smooth continuity of care from start to finish.
Office hours: Mon–Fri 8 AM–5 PM (Thu & Fri until 6 PM), Sat 8 AM–2 PM
Understanding Your Investment
At Aloha Dental Specialty Center, we provide transparent pricing before any treatment begins. The cost of your procedure depends on clinical complexity, materials used, and sedation requirements. We walk you through every line item during your consultation so there are no surprises.
What Affects Cost:
- Clinical Complexity: Bone loss, sinus proximity, nerve involvement, or the need for grafting affects treatment planning and surgical time.
- Materials: We use research-backed implant systems, purified bone graft matrices, and high-strength ceramics from established manufacturers.
- Sedation: Options range from local anesthesia to IV sedation, each with different associated costs. We discuss the best option for your comfort and procedure.
Insurance & Financing
We accept most major dental insurance plans and file claims on your behalf. Our team verifies your benefits before treatment and submits pre-treatment estimates with clinical documentation to maximize coverage.
For out-of-pocket costs, we partner with CareCredit and Cherry for flexible payment plans. We also offer our ADSC Dental Savings Plan for patients without insurance.
Recovery & Healing Timeline
Understanding the healing process helps you plan ahead and follow post-operative instructions for the best possible outcome.
First 48 Hours
Mild swelling and tenderness are normal. Apply ice packs in 20-minute intervals and take prescribed or over-the-counter anti-inflammatory medication. Eat soft foods and avoid the surgical site when chewing.
Days 3 to 7
Swelling peaks around day three and then improves. The tissue begins closing over the surgical site. Continue with soft foods and use any prescribed antimicrobial rinse. Most patients return to normal activities during this phase.
Long-Term Healing
Surface tissue heals within two to three weeks. Bone integration and deep healing continue for three to six months. Avoid smoking, follow up as scheduled, and maintain good oral hygiene throughout recovery.
Questions during recovery? Call us at (503) 822-0096. We are available for post-operative concerns.
Periosteal Bone Response: How a Framework Becomes Anchored Without Osseointegration
Unlike endosseous implants that integrate directly with the bone through osseointegration, subperiosteal implants rely on fibrous encapsulation and periosteal bone growth around the metal framework. The periosteum — which contains osteoprogenitor cells — is stimulated by the framework's presence to deposit new bone over and around the metal struts, gradually locking the framework in place. This process is less predictable than osseointegration and produces a fibrous-osseous anchor rather than a direct bone-metal bond. Modern frameworks made from titanium or cobalt-chromium with optimized mesh patterns improve this response. Long-term studies show functional longevity of 10 to 15 years when the framework design and patient selection are appropriate.
Why Choose ADSC?
Subperiosteal implant placement is a niche technique that very few implant clinicians have experience with. It requires expertise in reading CBCT data to design a framework that conforms precisely to the bone surface, managing soft-tissue closure over a bulky framework, and monitoring the unique healing pattern of periosteal encapsulation. Dr. Walied Eldomiaty offers this option as part of his comprehensive implant service portfolio, but only recommends it when conventional endosseous solutions — including zygomatic and pterygoid implants — are not viable.
Your Soft Tissue Grafting Implants Treatment Steps
- Consultation & Exam: Comprehensive soft tissue grafting implants evaluation with CBCT 3D imaging at our Beaverton office.
- Treatment Plan: Our experienced dental team discusses your soft tissue grafting implants options, timeline, and costs. We use advanced 3D imaging and evidence-based protocols across general dentistry, endodontics, and pediatric care.
- Treatment: Procedure performed with comfort options including sedation if needed.
- Follow-Up: Post-treatment monitoring and care coordination for best healing.
Schedule Your Appointment Today
Book a consultation with our team at Aloha Dental Specialty Center in Beaverton, OR. Call (503) 822-0096 Office hours: Monday through Friday 8 AM to 5 PM (until 6 PM Thursday and Friday), Saturday 8 AM to 2 PM. or request an appointment online.
Related Services at Aloha Dental Specialty Center:
Dental Implants · Oral Surgery · Root Canal · Invisalign · Periodontics · Pediatric · TMJ Treatment · Sedation · Cosmetic · Emergency · Sleep Apnea
What I Tell My Implant Patients
“In my experience placing many dental implants, I’ve found that the patients who do best are the ones who understand what they’re getting into. It’s not a painful procedure — most people tell me it was easier than the extraction. But it is a process. You’re looking at 3-6 months from implant placement to final crown, sometimes longer if we need to build bone first.
I won’t sugarcoat it: not every patient is a candidate right away. If you’ve had teeth missing for years, you’ve likely lost bone. That doesn’t mean you can’t get implants — it means we may need a bone graft or sinus lift first. I’d rather take the time to build a solid foundation than rush and risk failure.
The materials matter too. We use Nobel Biocare and Straumann titanium implants — these are the systems with the best long-term research behind them. For the crown, I typically recommend zirconia or e.max porcelain depending on the location in your mouth. Front teeth get a different material consideration than molars.
If you’re comparing costs, a single implant at our Beaverton office runs $3,500-$5,500 including the crown. That’s competitive for the Portland metro area, and we offer CareCredit 0% financing. Most PPO dental insurance plans now cover a portion of implant costs — our team will verify your benefits before we start.”
— Aloha Dental Specialty Center
Typical Healing Timeline:
Days 1-3: Initial healing, mild swelling managed with ice and medication. Days 4-7: Swelling subsides, gradual return to normal diet. Weeks 2-4: Soft tissue heals completely. Months 2-6: Bone remodeling and full integration (for surgical procedures). Individual recovery varies — we provide detailed post-op instructions specific to your procedure.
For additional clinical information, visit the American Dental Association (ADA).
Reviewed by Dr. Walied Eldomiaty, DDS, Periodontist — March 2026. Clinical information on this page reflects current evidence-based dental practices.
Related Dental Services
Frequently Asked Questions
A subperiosteal implant is a custom metal framework placed on top of the jawbone, beneath the gum tissue. Posts extend from the framework through the gums to support a dental prosthesis. Unlike standard implants that are drilled into the bone, subperiosteal implants sit on the bone surface and are secured by bone growth around the framework.
Patients with severe jawbone atrophy who cannot undergo bone grafting or are not candidates for zygomatic or pterygoid implants. This includes patients with failed prior grafts, medical contraindications to additional bone surgery, or anatomy that does not support any endosseous implant approach. It is a last-resort option for complex cases.
Rarely. Advances in bone grafting, zygomatic implants, and implant surface technology have made conventional endosseous implants possible for the vast majority of patients. However, subperiosteal implants have experienced a modest resurgence with CAD/CAM design and 3D printing technology, which improves framework fit and reduces surgical complexity.
Using your CBCT scan, a digital model of the bone surface is created. The framework is designed in CAD software to conform precisely to the bone contours and is then manufactured — typically 3D-printed in titanium or milled from cobalt-chromium. This digital approach is far more accurate than the older direct-impression technique.
With proper case selection and modern manufacturing, subperiosteal implants can function for 10 to 15 years. This is shorter than the expected lifetime of endosseous implants, which is one reason they are not a first-line option. Regular monitoring and meticulous oral hygiene are essential for longevity.
The surgery is different rather than necessarily more complex. It involves making an incision, reflecting the periosteum, seating the framework on the bone, and closing the tissue over it. The procedure does not require drilling into bone, which is actually less invasive in that respect. However, the soft-tissue management is more demanding.
Risks include framework exposure through the gum tissue, infection around the framework, and loosening over time. The fibrous-osseous attachment is less strong than osseointegration, so failure rates are historically higher than endosseous implants. Modern design and materials have reduced but not eliminated these risks.
Yes, subperiosteal frameworks can support full-arch prostheses. The framework spans the entire ridge and has multiple posts emerging through the gum tissue to anchor the prosthesis. For partial edentulism, smaller segment frameworks can be designed.
Due to the custom CAD/CAM design and fabrication, subperiosteal implants are comparable in cost to full-arch endosseous solutions — typically $20,000 to $35,000 per arch. The cost reflects the custom manufacturing and the specialized surgical expertise required for placement.
In the rare cases where both the maxillary alveolar bone and the zygomatic bone are insufficient (due to trauma, pathology, or prior surgery), subperiosteal implants provide an alternative anchoring mechanism that does not depend on any specific bone site. This is extremely uncommon but does occur in complex reconstructive cases.
Yes. The mandible (lower jaw) is actually the more common site for subperiosteal implants because severe mandibular atrophy can leave insufficient bone for even mini implants, and there are no zygomatic or pterygoid alternatives for the lower jaw. The framework conforms to the mandibular body and symphysis.
Recovery is similar to moderate oral surgery — expect swelling for one to two weeks, a soft diet for three to four weeks, and progressive improvement over a month. The soft tissue must heal over the framework completely before the prosthesis is loaded. Total healing time before final prosthesis delivery is two to four months.
Both are alternatives to root-form endosseous implants, but they are different designs. Blade implants are thin, flat implants inserted into a trench cut in the bone. Subperiosteal implants sit on top of the bone without penetrating it. Blade implants are essentially obsolete; subperiosteal implants retain a narrow clinical niche.
Yes. If the framework becomes mobile, exposed, or infected, it can be removed surgically. The bone surface beneath typically heals without significant additional loss. After removal and healing, alternative approaches (such as new grafting techniques that may have become available) can be considered.
Patients with active infections, uncontrolled diabetes, heavy smoking, or compromised immune systems face higher risk with any implant but especially subperiosteal designs. The periosteal healing response depends on healthy tissue biology. Dr. Walied Eldomiaty evaluates systemic health thoroughly before recommending this approach.