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Updated: Feb 8, 2026

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A subperiosteal maxillary implant causing severe osteolysis.

T M Nguyen1, J-B Caruhel2, R H Khonsari1

  • 1Service de chirurgie maxillofaciale et plastique, hôpital universitaire Necker-Enfants-Malades, université Sorbonne Paris Cité, université Paris Descartes, Assistance publique-Hôpitaux de Paris, 149, rue de Sèvres, 75015 Paris, France.

Journal of Stomatology, Oral and Maxillofacial Surgery
|June 26, 2018
PubMed
Summary

Subperiosteal implant denture therapy, used for severe bone atrophy, has shown success in the mandible but lacks follow-up for maxillary cases. This report details a rare case of severe maxillary osteolysis from a subperiosteal implant, highlighting management challenges.

Keywords:
Bone atrophyChronic osteitisDental implantEdentulous maxillaSubperiosteal implant

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Area of Science:

  • Oral surgery
  • Dental implantology
  • Biomaterials engineering

Background:

  • Subperiosteal implant denture therapy was introduced in 1942 for edentulous arches with advanced bone atrophy.
  • While mandibular subperiosteal implants report good success rates, maxillary counterparts lack comprehensive follow-up data.
  • These implants are infrequently used today but can pose management challenges if complications arise.

Observation:

  • A case of severe maxillary osteolysis secondary to an in-house subperiosteal implant is presented.
  • The patient experienced significant bone loss around the implant structure.
  • This complication underscores potential risks associated with older implant designs.

Findings:

  • Maxillary subperiosteal implants have limited documented long-term outcomes, unlike their mandibular counterparts.
  • Severe osteolysis can occur as a complication, necessitating complex patient management.
  • The case highlights the challenges in managing patients with pre-existing subperiosteal implants.

Implications:

  • Advances in surgical planning and additive manufacturing may revive interest in subperiosteal implant designs.
  • Further research is needed on the long-term efficacy and safety of maxillary subperiosteal implants.
  • Improved understanding of complications can guide future treatment strategies for patients with bone atrophy.