2019 Volume 65 Issue 2 Pages 61-68
Most iatrogenic foreign bodies in the maxillary sinus are caused by dental treatment. We experienced two cases of maxillary sinusitis caused by an iatrogenic foreign body which consisted of dental equipment, which is called a gutter percha point. In both cases, endoscopic modified medial maxillectomy was performed to remove the object and control infection, and the gutter percha point was found to be located in the maxillary sinus floor. We were able to preserve the involved teeth and obtained a good prognosis without any symptom recurrence following an operation. Various approaches may be adopted for removing a foreign body located in the maxillary sinus. It is necessary to consider minimally invasive treatment, and moreover we should consider the postoperative prognosis and the patient's desire for tooth preservation in such cases. Of note, if any bits of the foreign body remain after surgery, there is a high possibility of dissatisfaction with medical treatment. We can reliably approach the maxillary sinus floor by endoscopic modified medial maxillectomy. We consider endoscopic modified medial maxillectomy an excellent approach for managing iatrogenic foreign body due to root canal filling located in the maxillary sinus.
