Tài liệu Báo cáo y học: " Treatment of oroantral fistula with autologous bone graft and application of a non-

There is no agreement about the indication of techniques for the treatment of this kind of surgical complication. Spontaneous healing of 1 to 2 mm openings can occur, while untreated larger defects are connected with the pathogenesis of sinusitis (50% of patients after 48 hours – 90% of patients after 2 weeks2). Therefore, management of communications between oral cavity and sinus after tooth extraction is recommended to promote closure within 24 hours1-3. However, in patients with larger oroantral communications and those with a history of sinus disease, surgical closure is often indicated 1,2.