Abstract
Dentigerous cyst is a type of developmental odontogenic cysts that arises from the crown impacted, embedded or unerupted teeth that standardly managed by Caldwell-luc procedure, which is found to be associated with morbidities and complications. Endonasal endoscopic removal is a minimally invasive approach aiming to prevent morbidities and complications. The aim of this article is to study the advantages of the endonasal endoscopic approach in managing different cases of dentigerous cyst and ectopic teeth. In this article, we reported three different cases (two pediatric and one adult), one presenting with unilateral dentigerous cyst with traumatic ectopic teeth in the maxillary sinus, and one presenting with bilateral dentigerous cysts and ectopic teeth in the maxillary sinuses, the third case of unilateral ectopic intranasal canine tooth. All managed by endonasal endoscopic approach, with no complications and complete recovery. The endonasal endoscopic approach is a minimally invasive surgical approach. With the use of different angled endoscopes and instruments, this approach is preserving physiological function while minimizing morbidity and preventing complications.