Oroantral communication in periapical surgery of maxillary posterior teeth.
D001641:Bicuspid / Q000601:surgery*; D006801:Humans; D008437:Maxilla / Q000033:anatomy & histology; D008443:Maxillary Sinus / Q000033:anatomy & histology; D008963:Molar / Q000601:surgery*; D009957:Oroantral Fistula / Q000209:etiology* / Q000517:prevention & control; D010486:Periapical Tissue / Q000601:surgery*; D014092:Tooth Root / Q000033:anatomy & histology