Purpose: This study examined the value of ultrasonography as a diagnostic tool in the treatment of superficial acute odontogenic fascial space infections. Patients and Methods: The study group consisted of 50 patients in whom both radiographic and sonographic examinations, as well as a needle aspiration, were performed. Results: Purulent fluid was aspirated in 22 of the 50 patients. Six patients diagnosed as suffering from cellulitis had a repeated ultrasonography scan. In four, abscess formation was diagnosed on the third day. Conclusions: Ultrasonography is an effective diagnostic tool to confirm abscess formation in the superficial fascial spaces and is highly predictable in detecting the stage of infection.
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