We report a median maxillary cyst containing many foreign bodies, which were analyzed by Raman spectroscopy.
A 64-year-old man was referred to our hospital by his dentist for further evaluation. Radiographic examination revealed a cystic lesion of an upper incisor, containing many radiopaque masses. The clinical diagnosis was a calcifying odontogenic cyst.
The cyst was removed with the patient under general anesthesia, and histopathologicaldiagnosis of the residual cysts was done. The cyst contained many unknown foreign bodies.
To determine the nature of the foreign bodies, Raman spectroscopic analysis was carriedout. Raman spectra of the foreign bodies were very similar to those of polymethyl metacrylate (PMMA) or silicone materials. These dental materials were possibly impacted into the cyst during dental treatment. Raman spectroscopic analysis was considered very useful for evaluating foreign bodies in the oral and maxillofacial region.
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