OroAntral Communications and OroAntral Fistula

Abstract

AbstractRoutine exodontia is a common procedure performed by the general dental practitioner and the oral surgeon alike. Most of the maxillary premolar/molar extractions heal uneventfully, but some may cause inadvertent opening into the maxillary sinus, manifesting as immediate oroantral communications (OACs) or delayed oroantral fistulae. The common reasons being difficulty encountered in the extractions intra-operatively due to myriads of reasons or the OAC may be due to a pre-existing pathology in the periapical region or within the sinus lining. Whatever the reason be, it is paramount that the surgeon identifies the problem and approaches it in a sequential manner to avoid long-term consequences and to attain a perfect closure. The timing of the closure is crucial, which is dependent upon the sinus health and the socket condition. This may be complicated by a missing root tip, which is lying in the sinus. This chapter aims to walk the reader through these events in a logical fashion so that they can take appropriate decisions and use the correct surgical technique, which will ensure successful closure of the defect.