Zunaira salehabout 10 hours ago

Gutta percha tracing

, To locate the source of an infection, the sinus tract can be traced by threading the stoma with a gutta-percha point. B, The radiograph of the area shows an old root canal in tooth #4, and a questionable radiolucent area associated with tooth #5, with no indication of the etiology of the sinus tract. C, After tracing the sinus tract, the gutta-percha is seen to be directed to the source of pathosis, the apex of tooth #5.