Abstract
BACKGROUND: Oroantral fistula (OAF) is a pathological communication between maxillary sinus and oral cavity, which treated by various surgical methods including buccal flap and associated with post-operative discomfort and relatively long healing period.
 AIM: The objective of the study was to evaluate the effect of 0.2% hyaluronic acid (HA) gel on the healing period after surgical buccal flap treatment of OAF.
 METHODS: The records of 20 patients of both genders included and reviewed retrospectively. Ten patients treated with topical 0.2% HA gel while the other 10 patients treated without it. Patients healing process followed up for suture removal appointment.
 RESULTS: Statistically significant p ≤ 0.05 decreases in healing period when we compare patients treated with topical HA gel and those without topical HA gel.
 CONCLUSION: The use of topical HA gel may have advantages for soft-tissue healing and decrease healing period for patients has OAF treated with surgical buccal flap.
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