Journal of AdvancedMedical and Dental Sciences Research

It is seen rarely to encounter an ectopic tooth eruption in a non‑dental area. Multiple cases of the teeth erupting in the chin, mandibular condyle, coronoid process, palate and maxillary sinus. Often, the ectopic tooth in maxillary sinus is incidentally found on routine radiological examination, while at the same time, they can be associated with pathologies like odontogenic keratocyst or dentigerous cyst. Moreover, swelling, facial pain, epistaxis , purulent rhinorrhoea, , headache and epiphora‑related naso‑lacrimal duct obstruction can also be seen. Most of the ectopic teeth within the maxillay sinus are remived by Caldwell‑Luc procedure. In this study, a case of ectopic maxillary third molar tooth on left maxillary sinus is presented. Key words: Dentigerous Cyst; Ectopic Tooth; Maxillary Sinus; Third Molar.