This text book is designed to prepare dental practitioners to address Oro-antral fistula management. The oroantral fistula is an iotrogenic or pathological communication between the oral cavity and the maxillary sinus. Oroantral communication is the space created between the maxillary sinus and the oral cavity, which if not treated, will progress to oroantral fistula.This book illustrate comprehensive presentations of fundamental surgical and medical management principles.