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Closure of oroantral communications using biodegradable polyurethane foam: a feasibility study
Susan H Visscher1, Baucke van Minnen, Rudolf R M Bos
1Department of Oral and Maxillofacial Surgery, University Medical Centre Groningen, University of Groningen, Groningen, The Netherlands. s.visscher@kchir.umcg.nl
Summary
Biodegradable polyurethane (PU) foam shows promise for closing oroantral communications (OACs). This feasibility study found successful closure in 70% of patients, suggesting PU foam can avoid surgery for many OAC cases.
Area of Science:
- Oral and Maxillofacial Surgery
- Biomaterials Science
- Regenerative Medicine
Background:
- Oroantral communications (OACs) are abnormal openings between the oral cavity and maxillary sinus.
- Current treatments often involve surgical interventions, which carry potential complications.
- Biodegradable materials are being explored as less invasive alternatives for OAC closure.
Purpose of the Study:
- To evaluate the feasibility of using biodegradable polyurethane (PU) foam for the closure of oroantral communications (OACs).
- To assess the efficacy and complication profile of PU foam in OAC treatment.
Main Methods:
- A prospective study involving ten consecutive patients with OACs (present for <24 hours).
- Treatment involved the application of biodegradable PU foam to close the OAC.
- Patients were monitored with standardized evaluations at 2 and 8 weeks post-procedure.
Main Results:
- Successful OAC closure was achieved in 7 out of 10 patients (70%) without further surgical intervention.
- Complications included sinusitis in 3 patients (managed conservatively or with further intervention) and recurrence in 2 patients.
- Recurred OACs were successfully treated with standard buccal flap surgery.
Conclusions:
- Biodegradable PU foam is a feasible option for OAC closure, potentially sparing many patients from surgery.
- Complication risks may be linked to foam fit and OAC perforation size.
- The standard surgical approach remains a viable alternative if PU foam treatment fails.
