Patient Specific Implants (PSIs) for the Decompression of Odontogenic Cysts
Patient Specific Implants for the Decompression of Odontogenic Cysts
Semmelweis University
20 participants
Nov 26, 2024
OBSERVATIONAL
Conditions
Summary
This study aims to assess the feasibility of the decompression of odontogenic cysts using Patient Specific Implants anchored subperiosteally using osteosynthesis screws.
Eligibility
Inclusion Criteria1
- Patients of the Department of Public Dental Health, Semmelweis University, presenting with odontogenic cysts of the jaws that involve anatomical landmarks are included in the study.
Exclusion Criteria6
- Patients who have uncontrolled major systemic diseases as classified by the American Society of Anesthesiologists (ASA grades III-IV)
- Cancer of the oral cavity
- History of irradiation therapy in the head and neck region within the previous five years,
- History of uncontrolled psychiatric disorders,
- Unwillingness to return for follow-up appointments.
- Patients on medications interfering with bone metabolism, including steroid therapy and antiresorptive medication
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Interventions
A CBCT scan is performed before the surgical intervention.
Under local anesthesia, a full-thickness flap is prepared and cystostomy is performed.
A sample of the cyst lining is sent for histologic diagnosis.
The PSI is fixed on the surface of the bone using osteosynthesis screws.
The PSI enables the discharge of the cystic liquid into the oral cavity. The resulting decrease in cystic pressure induces bone healing. Patients are recalled monthly for controls and panoramic X-rays are performed to monitor the decompression.
Post-operative CBCT is performed six months after cystostomy to assess whether the cyst volume has been sufficiently reduced for enucleation, minimizing the risk of damage to anatomical landmarks.
Under local anesthesia a full-thickness flap is raised and the PSI is removed by unscrewing the osteosynthesis screws. The wall of the cyst is completely enucleated and the flap is sutured.
The residual cyst wall is sent for histopathologic examination.
Locations(1)
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NCT06688851