To describe surgical management strategies for odontogenic sinusitis (ODS) related to dental implants and sinus floor elevation, based on clinical features and the Felisati classification.
Approach:
Study Design: Retrospective single-center study analyzing 45 patients treated for ODS between December 2020 and December 2025.
Patient Classification: Patients were classified into Group I (pre-implant complications) and Group II (implant-related complications) according to the Felisati classification.
Surgical Strategies: Evaluated surgical strategies included Endoscopic Sinus Surgery (FESS), exclusive oral approach, and combined simultaneous techniques.
Key Findings:
Group II (implant-related ODS) comprised 37 patients (82.2% of the cohort), with chronic sinusitis affecting 70.3% of these patients.
A high incidence of foreign bodies and oroantral communications (64.9% each) was noted in Group II.
A combined simultaneous approach was favored in 22 cases (59.5% of Group II), while exclusive approaches were used in selected patients.
Interpretation:
Implant-related and pre-implant ODS are distinct entities, often complicated by OMC obstruction and foreign body reactions.
Limitations:
Single-center study may limit generalizability of findings.
Retrospective design may introduce selection bias.
Conclusion:
Complete short-term clinical and endoscopic resolution was achieved in 44 out of 45 patients (97.8%) at the 3-month follow-up.
