Severe bone atrophy · 3D planning · custom implant
A modern subperiosteal implant is a custom framework placed on the jawbone beneath the gum, unlike a conventional endosseous implant inserted into bone. It may be considered in selected complex cases of severe bone atrophy after specialist assessment.
When to seek advice
Consultation
The consultation reviews general health, expectations, oral tissues, bite and previous treatments. A three-dimensional scan is required to assess bone volume, anatomical structures and any patient-specific design.
This is not a standard solution and is not suitable for everyone. Alternatives such as removable prostheses, bone grafting, short, tilted or zygomatic implants—depending on the case—must be compared with their benefits, limitations and risks.
Planning
Contemporary subperiosteal implants are digitally designed to fit the patient’s bone anatomy. Planning combines scan data, the prosthetic project and the intended fixation areas.
Image quality, design accuracy, soft-tissue condition and coordination between surgery and prosthetics are essential.
Evidence
Recent studies report encouraging short-term outcomes in selected patients, but the evidence is heterogeneous and long-term data are less established than for conventional implants.
Possible complications include pain, swelling, infection, framework exposure, soft-tissue dehiscence, prosthetic problems and partial or complete implant loss. Meticulous hygiene and long-term follow-up are essential.
Frequently asked questions
A conventional implant is inserted into bone. A subperiosteal implant is a custom framework fixed on the bone surface beneath the gum.
It may offer a graftless option in selected cases, but clinical and radiological assessment is needed to compare all appropriate solutions.
A clinical examination and three-dimensional scan are required for anatomical assessment and possible custom planning.
No. Published outcomes are promising in selected cases, but complications are possible and long-term evidence remains limited.
Further reading
These general resources complement this page. They do not replace a medical consultation or personalised advice.
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