Subperiosteal Implants: Risks, Candidacy and What the Process Involves

A custom subperiosteal implant is a framework designed from your 3D (CBCT) scan and fitted onto the surface of the jawbone, under the gum, to carry fixed teeth when the bone has become too thin for screw-type implants. It is considered case by case, for the upper or the lower jaw, once the alternatives have been compared. Its risks are real (exposure, infection, fit) and its long-term track record is shorter than that of conventional implants. Dr. Türker Clinic quotes it in writing, after a CBCT scan.

If you have been told you have an atrophic jaw, meaning too little bone is left for conventional implants, or that you would first need a major bone graft, this guide is for you. It explains who this option is for, how the process works in Istanbul, what the risks are and how to read a review or a quote. It is written for patients in the UK, Ireland, Canada, the US and elsewhere who are weighing their options before traveling.

What is a custom subperiosteal implant?

A conventional dental implant is a small screw-shaped post placed into the jawbone, where it integrates with the bone. That requires enough bone in both height and width. After teeth are lost, the jawbone can shrink. When too little is left to hold conventional implants, the jaw is described as atrophic.

A subperiosteal implant works on a different principle. The periosteum is the thin membrane that covers the bone beneath the gum. The framework rests against the surface of the bone instead of being driven into it. It is designed from the 3D imaging and the plan for your future teeth, manufactured to fit the bone that remains, then fixed in place according to the plan. Posts pass through the gum tissue to receive the prosthesis. The device does not in itself involve harvesting bone.

The principle is not new, and digital design and manufacturing have renewed interest in the option. Its track record is still not equivalent to that of implants placed into the bone: techniques, materials and definitions of success vary between publications.

At Dr. Türker Clinic, this subject belongs to the oral and maxillofacial surgeon, Assoc. Prof. Dr. Türker Yücesoy, who lists custom-designed subperiosteal implants among his professional interests. The clinic’s page on subperiosteal implants gives a short overview of the treatment.

Who is a candidate for a subperiosteal implant?

This option is not a default choice. It can enter the discussion when bone loss is marked, particularly when

• rebuilding the bone would require major surgery;
• earlier bone grafts have failed;
• you decline a graft after understanding its benefits, its limits and the alternatives;
• the path of a zygomatic implant, or the condition of the sinus, makes that other route unfavorable, which is always judged case by case.

Even then, the anatomy, the soft tissues, the space for the prosthesis, hygiene and the options for fixation must all be compatible. The CBCT scan shows the volume of bone, the sinus, the nerves and the possible fixation areas.

Upper jaw or lower jaw?

Depending on the indication, some subperiosteal devices may concern the lower jaw (the mandible), whereas a zygomatic implant concerns the upper jaw only. In both cases, feasibility depends on the bone that remains and the tissue available, never on location alone.

What this option is not

It is not the answer to bone that is merely thin or short. Short, narrow-diameter or tilted implants can sometimes be enough, as the guide to dental implants without a bone graft explains. Age alone is not an indication, and a wish to get teeth faster does not justify this surgery.

The process in Istanbul, from file review to follow-up

The reasoning always follows the same order.

1. Remote file review. A panoramic X-ray, a CBCT scan if you have one, earlier reports, any history of grafts, implants or sinus infections, health conditions and smoking. This is a first orientation, never a final plan.
2. Examination and CBCT scan. The tissues, hygiene, remaining teeth, mouth opening, bite and teeth grinding (bruxism) are assessed. The plan is confirmed in person before any surgery.
3. Prosthetic plan, then design. The starting point is the teeth you want and how they will be cleaned. The reasoning works back from there to the surgery, not the other way around. The framework is then designed and manufactured.
4. Surgery. The surface of the bone is exposed, the framework is placed and fixed according to the plan, and the gum is carefully closed. The type of anesthesia depends on the technique, its extent and your health.
5. Prosthesis. An early fixed temporary prosthesis can sometimes be placed if the stability and the bite allow it. That cannot be promised before surgery, and a removable or delayed solution should remain possible. The final prosthesis follows healing.
6. Follow-up. Check-ups, cleaning around the posts, maintenance of the prosthesis and a plan for handling an emergency once you are back home.

No manufacturing time or number of stays is stated here. Both depend on the plan and should be given to you in writing.

If you are traveling from abroad

Consultations are held in Turkish, English and French, and a coordinator organizes translation, airport transfers and the hotel. Ask in writing how many stays are planned, whether the first prosthesis is temporary and which check-ups could be done in your home country. You should receive an operative report, the images, identification of the device and its components, the prosthetic plan, instructions, emergency contact details and a follow-up schedule.

Subperiosteal implant risks and complications

As with any surgery, placement can be followed by pain, swelling, bleeding, infection or delayed healing. A subperiosteal device adds risks of its own

Depending on the area treated, other complications are possible, such as nerve injury or a sinus complication.

Track record and “success rates”

No success percentage is given here. A published figure only means something if it states the technique, the number of patients, the definition of success and the length of follow-up, and individual risk cannot be put into numbers without a diagnosis. Contemporary data on custom devices are promising, but long-term follow-up is more limited and the studies vary. If someone quotes you a “consensus” or a review, ask for the reference, the date, the technique concerned and the follow-up period.

Warning signs: when to contact the team

Contact the clinic promptly if you notice discharge, a gum that opens over the framework, pain that gets worse after it had been improving, swelling that keeps growing or a loose part. Difficulty breathing or swallowing, uncontrolled bleeding or very rapid swelling call for local emergency services: 911 in the US and Canada, 999 or 112 in the UK and Ireland, and 112 across the EU and in Turkey. More detail: what to do about a dental problem after treatment in Turkey.

Reviews, cost and quotes: how to read them

What reviews can and cannot tell you

A review describes an experience: how you were received, the pain you felt, how the stay was organized. It says little about how a framework holds up years later. For a custom device, it is only useful if it states the date, the device, the area treated, the number of stays and the length of follow-up. Photos taken just after placement do not prove the long-term result, and a single negative review does not judge a whole team. No testimonial is reproduced here. For how to read reviews of dental care in Turkey in general, see are dental implants in Turkey safe? The real risks and what to check.

Why no price is shown here

Dr. Türker Clinic offers this treatment on an individual quote. The framework is designed and made for one specific anatomy, and neither its design nor the extent of the surgery is known before the CBCT scan and the examination. The clinic lists prices for other protocols (a single implant, and full arches with All-on-4 and All-on-6). Those do not apply to this device and should not be used as a benchmark. An amount quoted before any CBCT scan is an estimate, not a quote. The scope of a subperiosteal quote is confirmed in writing, after the CBCT scan and a clinical examination.

What the quote and the surgeon should spell out

• [ ] What diagnosis explains the lack of bone, and which examination is it based on?
• [ ] Which options were ruled out, and why?
• [ ] How is the device designed, manufactured and fixed?
• [ ] Who operates, and who makes and maintains the prosthesis?
• [ ] What is the plan if the device becomes exposed, infected or unstable?
• [ ] Is the prosthesis temporary or final, and can it be removed and cleaned?
• [ ] Does the quote itemize imaging, anesthesia, the device, surgery, prostheses, medication, check-ups and revisions, separately from travel?

To compare two proposals line by line, see how to read a dental quote in Turkey.

Limits, alternatives and when to postpone

You should be able to understand why a less invasive option is not enough before you consent to advanced surgery.

When to postpone or rule it out

An active mouth or sinus infection, an unstable general medical condition, insufficient hygiene, heavy smoking, uncontrolled teeth grinding, fragile soft tissue, inadequate space for the prosthesis, unrealistic expectations or being unable to attend check-ups can lead to postponing or ruling out the operation. These are not all absolute contraindications: they change the level of risk and are assessed case by case.

Sources

• International Team for Implantology (ITI): consensus statements and recommendations in implant dentistry.
• European Association for Osseointegration (EAO): resources and consensus reports in implant dentistry.
• PubMed: biomedical literature database, to find systematic reviews on custom subperiosteal devices and their follow-up periods.

Ask for an opinion on your file

If you have a panoramic X-ray, a CBCT scan or earlier reports, you can send them to Dr. Türker Clinic on WhatsApp at +90 531 818 02 87 or through the contact page; see the contact page for current opening hours. The clinic’s oral and maxillofacial surgeon will say whether the documents are usable and which examinations are missing.

This first reading is only an orientation, and no decision is expected at this stage: the plan is set after a clinical examination. To weigh a proposal you received elsewhere, see second opinion for dental implants.

This page is an information guide: it makes no diagnosis remotely and does not replace a clinical examination.